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Finding the Fourth Proportional to 144,079.70, 216,102.54 and 38,906.87

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Solution

The fourth proportional to 144,079.70, 216,102.54 and 38,906.87 is: 58,355.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,079.70 : 216,102.54 = 38,906.87 : x
  2. Step 2: Convert to fraction form
    144,079.70/216,102.54 = 38,906.87/x
  3. Step 3: Cross multiply
    144,079.70x = 216,102.54 × 38,906.87
  4. Step 4: Simplify right side
    144,079.70x = 8,407,873,430.45
  5. Step 5: Solve for x
    x = 8,407,873,430.45/144,079.70
  6. Step 6: Final answer
    x = 58,355.71

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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.