Home / 141,818.87-195,710.07-77,288.12

Finding the Fourth Proportional to 141,818.87, 195,710.07 and 77,288.12

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Solution

The fourth proportional to 141,818.87, 195,710.07 and 77,288.12 is: 106,657.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,818.87 : 195,710.07 = 77,288.12 : x
  2. Step 2: Convert to fraction form
    141,818.87/195,710.07 = 77,288.12/x
  3. Step 3: Cross multiply
    141,818.87x = 195,710.07 × 77,288.12
  4. Step 4: Simplify right side
    141,818.87x = 15,126,063,375.37
  5. Step 5: Solve for x
    x = 15,126,063,375.37/141,818.87
  6. Step 6: Final answer
    x = 106,657.62

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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.