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Finding the Fourth Proportional to 101,703.38, 140,350.65 and 56,381.24

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Solution

The fourth proportional to 101,703.38, 140,350.65 and 56,381.24 is: 77,806.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,703.38 : 140,350.65 = 56,381.24 : x
  2. Step 2: Convert to fraction form
    101,703.38/140,350.65 = 56,381.24/x
  3. Step 3: Cross multiply
    101,703.38x = 140,350.65 × 56,381.24
  4. Step 4: Simplify right side
    101,703.38x = 7,913,144,032.68
  5. Step 5: Solve for x
    x = 7,913,144,032.68/101,703.38
  6. Step 6: Final answer
    x = 77,806.11

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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.