Home / 107,639.76-148,564.68-62,942.16

Finding the Fourth Proportional to 107,639.76, 148,564.68 and 62,942.16

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Solution

The fourth proportional to 107,639.76, 148,564.68 and 62,942.16 is: 86,872.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,639.76 : 148,564.68 = 62,942.16 : x
  2. Step 2: Convert to fraction form
    107,639.76/148,564.68 = 62,942.16/x
  3. Step 3: Cross multiply
    107,639.76x = 148,564.68 × 62,942.16
  4. Step 4: Simplify right side
    107,639.76x = 9,350,981,858.91
  5. Step 5: Solve for x
    x = 9,350,981,858.91/107,639.76
  6. Step 6: Final answer
    x = 86,872.93

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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.