Home / 172,461,716.80-258,692,575.20-86,213,435.20

Finding the Fourth Proportional to 172,461,716.80, 258,692,575.20 and 86,213,435.20

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Solution

The fourth proportional to 172,461,716.80, 258,692,575.20 and 86,213,435.20 is: 129,320,152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,461,716.80 : 258,692,575.20 = 86,213,435.20 : x
  2. Step 2: Convert to fraction form
    172,461,716.80/258,692,575.20 = 86,213,435.20/x
  3. Step 3: Cross multiply
    172,461,716.80x = 258,692,575.20 × 86,213,435.20
  4. Step 4: Simplify right side
    172,461,716.80x = 22,302,775,568,726,328
  5. Step 5: Solve for x
    x = 22,302,775,568,726,328/172,461,716.80
  6. Step 6: Final answer
    x = 129,320,152.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.