Home / 117,577.12-176,310.78-42,687.76

Finding the Fourth Proportional to 117,577.12, 176,310.78 and 42,687.76

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Solution

The fourth proportional to 117,577.12, 176,310.78 and 42,687.76 is: 64,011.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,577.12 : 176,310.78 = 42,687.76 : x
  2. Step 2: Convert to fraction form
    117,577.12/176,310.78 = 42,687.76/x
  3. Step 3: Cross multiply
    117,577.12x = 176,310.78 × 42,687.76
  4. Step 4: Simplify right side
    117,577.12x = 7,526,312,262.05
  5. Step 5: Solve for x
    x = 7,526,312,262.05/117,577.12
  6. Step 6: Final answer
    x = 64,011.71

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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.