Home / 131,581.46-181,582.28-71,151.95

Finding the Fourth Proportional to 131,581.46, 181,582.28 and 71,151.95

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Solution

The fourth proportional to 131,581.46, 181,582.28 and 71,151.95 is: 98,189.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,581.46 : 181,582.28 = 71,151.95 : x
  2. Step 2: Convert to fraction form
    131,581.46/181,582.28 = 71,151.95/x
  3. Step 3: Cross multiply
    131,581.46x = 181,582.28 × 71,151.95
  4. Step 4: Simplify right side
    131,581.46x = 12,919,933,307.45
  5. Step 5: Solve for x
    x = 12,919,933,307.45/131,581.46
  6. Step 6: Final answer
    x = 98,189.62

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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.