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Finding the Fourth Proportional to 141,951.68, 195,904.80 and 78,295.04

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Solution

The fourth proportional to 141,951.68, 195,904.80 and 78,295.04 is: 108,053.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,951.68 : 195,904.80 = 78,295.04 : x
  2. Step 2: Convert to fraction form
    141,951.68/195,904.80 = 78,295.04/x
  3. Step 3: Cross multiply
    141,951.68x = 195,904.80 × 78,295.04
  4. Step 4: Simplify right side
    141,951.68x = 15,338,374,152.19
  5. Step 5: Solve for x
    x = 15,338,374,152.19/141,951.68
  6. Step 6: Final answer
    x = 108,053.49

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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.