Home / 124,520.72-186,780.53-53,437.28

Finding the Fourth Proportional to 124,520.72, 186,780.53 and 53,437.28

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Solution

The fourth proportional to 124,520.72, 186,780.53 and 53,437.28 is: 80,155.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,520.72 : 186,780.53 = 53,437.28 : x
  2. Step 2: Convert to fraction form
    124,520.72/186,780.53 = 53,437.28/x
  3. Step 3: Cross multiply
    124,520.72x = 186,780.53 × 53,437.28
  4. Step 4: Simplify right side
    124,520.72x = 9,981,042,679.85
  5. Step 5: Solve for x
    x = 9,981,042,679.85/124,520.72
  6. Step 6: Final answer
    x = 80,155.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.