Home / 85,669.05-127,890.42-74,462.04

Finding the Fourth Proportional to 85,669.05, 127,890.42 and 74,462.04

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Solution

The fourth proportional to 85,669.05, 127,890.42 and 74,462.04 is: 111,160.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,669.05 : 127,890.42 = 74,462.04 : x
  2. Step 2: Convert to fraction form
    85,669.05/127,890.42 = 74,462.04/x
  3. Step 3: Cross multiply
    85,669.05x = 127,890.42 × 74,462.04
  4. Step 4: Simplify right side
    85,669.05x = 9,522,981,569.66
  5. Step 5: Solve for x
    x = 9,522,981,569.66/85,669.05
  6. Step 6: Final answer
    x = 111,160.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.