Home / 103,554.20-155,331.30-92,728.55

Finding the Fourth Proportional to 103,554.20, 155,331.30 and 92,728.55

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Solution

The fourth proportional to 103,554.20, 155,331.30 and 92,728.55 is: 139,092.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,554.20 : 155,331.30 = 92,728.55 : x
  2. Step 2: Convert to fraction form
    103,554.20/155,331.30 = 92,728.55/x
  3. Step 3: Cross multiply
    103,554.20x = 155,331.30 × 92,728.55
  4. Step 4: Simplify right side
    103,554.20x = 14,403,646,218.62
  5. Step 5: Solve for x
    x = 14,403,646,218.62/103,554.20
  6. Step 6: Final answer
    x = 139,092.83

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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.