Home / 141,345.83-195,057.30-77,687.73

Finding the Fourth Proportional to 141,345.83, 195,057.30 and 77,687.73

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Solution

The fourth proportional to 141,345.83, 195,057.30 and 77,687.73 is: 107,209.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,345.83 : 195,057.30 = 77,687.73 : x
  2. Step 2: Convert to fraction form
    141,345.83/195,057.30 = 77,687.73/x
  3. Step 3: Cross multiply
    141,345.83x = 195,057.30 × 77,687.73
  4. Step 4: Simplify right side
    141,345.83x = 15,153,558,856.93
  5. Step 5: Solve for x
    x = 15,153,558,856.93/141,345.83
  6. Step 6: Final answer
    x = 107,209.10

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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.