Home / 159,403.90-239,064.33-75,141.69

Finding the Fourth Proportional to 159,403.90, 239,064.33 and 75,141.69

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Solution

The fourth proportional to 159,403.90, 239,064.33 and 75,141.69 is: 112,692.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,403.90 : 239,064.33 = 75,141.69 : x
  2. Step 2: Convert to fraction form
    159,403.90/239,064.33 = 75,141.69/x
  3. Step 3: Cross multiply
    159,403.90x = 239,064.33 × 75,141.69
  4. Step 4: Simplify right side
    159,403.90x = 17,963,698,082.27
  5. Step 5: Solve for x
    x = 17,963,698,082.27/159,403.90
  6. Step 6: Final answer
    x = 112,692.97

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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.