Home / 141,789.60-195,678.24-78,127.32

Finding the Fourth Proportional to 141,789.60, 195,678.24 and 78,127.32

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Solution

The fourth proportional to 141,789.60, 195,678.24 and 78,127.32 is: 107,820.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,789.60 : 195,678.24 = 78,127.32 : x
  2. Step 2: Convert to fraction form
    141,789.60/195,678.24 = 78,127.32/x
  3. Step 3: Cross multiply
    141,789.60x = 195,678.24 × 78,127.32
  4. Step 4: Simplify right side
    141,789.60x = 15,287,816,473.52
  5. Step 5: Solve for x
    x = 15,287,816,473.52/141,789.60
  6. Step 6: Final answer
    x = 107,820.44

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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.