Home / 159,402.30-239,158.82-70,718.09

Finding the Fourth Proportional to 159,402.30, 239,158.82 and 70,718.09

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Solution

The fourth proportional to 159,402.30, 239,158.82 and 70,718.09 is: 106,101.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,402.30 : 239,158.82 = 70,718.09 : x
  2. Step 2: Convert to fraction form
    159,402.30/239,158.82 = 70,718.09/x
  3. Step 3: Cross multiply
    159,402.30x = 239,158.82 × 70,718.09
  4. Step 4: Simplify right side
    159,402.30x = 16,912,853,407.67
  5. Step 5: Solve for x
    x = 16,912,853,407.67/159,402.30
  6. Step 6: Final answer
    x = 106,101.69

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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.