Home / 134,892-186,151.20-74,462.70

Finding the Fourth Proportional to 134,892, 186,151.20 and 74,462.70

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Solution

The fourth proportional to 134,892, 186,151.20 and 74,462.70 is: 102,758.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,892 : 186,151.20 = 74,462.70 : x
  2. Step 2: Convert to fraction form
    134,892/186,151.20 = 74,462.70/x
  3. Step 3: Cross multiply
    134,892x = 186,151.20 × 74,462.70
  4. Step 4: Simplify right side
    134,892x = 13,861,320,960.24
  5. Step 5: Solve for x
    x = 13,861,320,960.24/134,892
  6. Step 6: Final answer
    x = 102,758.66

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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.