Home / 109,920.43-151,685.62-62,174.58

Finding the Fourth Proportional to 109,920.43, 151,685.62 and 62,174.58

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Solution

The fourth proportional to 109,920.43, 151,685.62 and 62,174.58 is: 85,798.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,920.43 : 151,685.62 = 62,174.58 : x
  2. Step 2: Convert to fraction form
    109,920.43/151,685.62 = 62,174.58/x
  3. Step 3: Cross multiply
    109,920.43x = 151,685.62 × 62,174.58
  4. Step 4: Simplify right side
    109,920.43x = 9,430,989,715.54
  5. Step 5: Solve for x
    x = 9,430,989,715.54/109,920.43
  6. Step 6: Final answer
    x = 85,798.33

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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.