Home / 102,240.56-141,083.88-56,915.12

Finding the Fourth Proportional to 102,240.56, 141,083.88 and 56,915.12

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Solution

The fourth proportional to 102,240.56, 141,083.88 and 56,915.12 is: 78,538.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,240.56 : 141,083.88 = 56,915.12 : x
  2. Step 2: Convert to fraction form
    102,240.56/141,083.88 = 56,915.12/x
  3. Step 3: Cross multiply
    102,240.56x = 141,083.88 × 56,915.12
  4. Step 4: Simplify right side
    102,240.56x = 8,029,805,960.27
  5. Step 5: Solve for x
    x = 8,029,805,960.27/102,240.56
  6. Step 6: Final answer
    x = 78,538.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.