Home / 288,764.14-433,186.89-89,100.76

Finding the Fourth Proportional to 288,764.14, 433,186.89 and 89,100.76

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Solution

The fourth proportional to 288,764.14, 433,186.89 and 89,100.76 is: 133,663.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,764.14 : 433,186.89 = 89,100.76 : x
  2. Step 2: Convert to fraction form
    288,764.14/433,186.89 = 89,100.76/x
  3. Step 3: Cross multiply
    288,764.14x = 433,186.89 × 89,100.76
  4. Step 4: Simplify right side
    288,764.14x = 38,597,281,121.04
  5. Step 5: Solve for x
    x = 38,597,281,121.04/288,764.14
  6. Step 6: Final answer
    x = 133,663.69

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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.