Home / 100,068.11-138,088.85-54,737.27

Finding the Fourth Proportional to 100,068.11, 138,088.85 and 54,737.27

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Solution

The fourth proportional to 100,068.11, 138,088.85 and 54,737.27 is: 75,534.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,068.11 : 138,088.85 = 54,737.27 : x
  2. Step 2: Convert to fraction form
    100,068.11/138,088.85 = 54,737.27/x
  3. Step 3: Cross multiply
    100,068.11x = 138,088.85 × 54,737.27
  4. Step 4: Simplify right side
    100,068.11x = 7,558,606,737.98
  5. Step 5: Solve for x
    x = 7,558,606,737.98/100,068.11
  6. Step 6: Final answer
    x = 75,534.62

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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.