Home / 121,402.28-182,155.95-65,176.79

Finding the Fourth Proportional to 121,402.28, 182,155.95 and 65,176.79

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Solution

The fourth proportional to 121,402.28, 182,155.95 and 65,176.79 is: 97,793.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,402.28 : 182,155.95 = 65,176.79 : x
  2. Step 2: Convert to fraction form
    121,402.28/182,155.95 = 65,176.79/x
  3. Step 3: Cross multiply
    121,402.28x = 182,155.95 × 65,176.79
  4. Step 4: Simplify right side
    121,402.28x = 11,872,339,189.62
  5. Step 5: Solve for x
    x = 11,872,339,189.62/121,402.28
  6. Step 6: Final answer
    x = 97,793.38

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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.