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Finding the Fourth Proportional to 102,753.64, 141,737.70 and 70,866.28

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Solution

The fourth proportional to 102,753.64, 141,737.70 and 70,866.28 is: 97,752.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,753.64 : 141,737.70 = 70,866.28 : x
  2. Step 2: Convert to fraction form
    102,753.64/141,737.70 = 70,866.28/x
  3. Step 3: Cross multiply
    102,753.64x = 141,737.70 × 70,866.28
  4. Step 4: Simplify right side
    102,753.64x = 10,044,423,534.76
  5. Step 5: Solve for x
    x = 10,044,423,534.76/102,753.64
  6. Step 6: Final answer
    x = 97,752.48

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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.