Home / 261,130.80-391,720.50-92,634.60

Finding the Fourth Proportional to 261,130.80, 391,720.50 and 92,634.60

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Solution

The fourth proportional to 261,130.80, 391,720.50 and 92,634.60 is: 138,960.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,130.80 : 391,720.50 = 92,634.60 : x
  2. Step 2: Convert to fraction form
    261,130.80/391,720.50 = 92,634.60/x
  3. Step 3: Cross multiply
    261,130.80x = 391,720.50 × 92,634.60
  4. Step 4: Simplify right side
    261,130.80x = 36,286,871,829.30
  5. Step 5: Solve for x
    x = 36,286,871,829.30/261,130.80
  6. Step 6: Final answer
    x = 138,960.52

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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.