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Finding the Fourth Proportional to 141,407.92, 195,114.95 and 79,320.41

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Solution

The fourth proportional to 141,407.92, 195,114.95 and 79,320.41 is: 109,446.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,407.92 : 195,114.95 = 79,320.41 : x
  2. Step 2: Convert to fraction form
    141,407.92/195,114.95 = 79,320.41/x
  3. Step 3: Cross multiply
    141,407.92x = 195,114.95 × 79,320.41
  4. Step 4: Simplify right side
    141,407.92x = 15,476,597,831.13
  5. Step 5: Solve for x
    x = 15,476,597,831.13/141,407.92
  6. Step 6: Final answer
    x = 109,446.47

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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.