Home / 157,519.15-236,217.30-68,712.10

Finding the Fourth Proportional to 157,519.15, 236,217.30 and 68,712.10

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Solution

The fourth proportional to 157,519.15, 236,217.30 and 68,712.10 is: 103,041.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,519.15 : 236,217.30 = 68,712.10 : x
  2. Step 2: Convert to fraction form
    157,519.15/236,217.30 = 68,712.10/x
  3. Step 3: Cross multiply
    157,519.15x = 236,217.30 × 68,712.10
  4. Step 4: Simplify right side
    157,519.15x = 16,230,986,739.33
  5. Step 5: Solve for x
    x = 16,230,986,739.33/157,519.15
  6. Step 6: Final answer
    x = 103,041.36

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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.