Home / 159,402.13-219,981.74-91,438.27

Finding the Fourth Proportional to 159,402.13, 219,981.74 and 91,438.27

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Solution

The fourth proportional to 159,402.13, 219,981.74 and 91,438.27 is: 126,188.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,402.13 : 219,981.74 = 91,438.27 : x
  2. Step 2: Convert to fraction form
    159,402.13/219,981.74 = 91,438.27/x
  3. Step 3: Cross multiply
    159,402.13x = 219,981.74 × 91,438.27
  4. Step 4: Simplify right side
    159,402.13x = 20,114,748,730.04
  5. Step 5: Solve for x
    x = 20,114,748,730.04/159,402.13
  6. Step 6: Final answer
    x = 126,188.71

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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.