Home / 134,709.27-185,895.21-74,278.88

Finding the Fourth Proportional to 134,709.27, 185,895.21 and 74,278.88

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Solution

The fourth proportional to 134,709.27, 185,895.21 and 74,278.88 is: 102,502.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,709.27 : 185,895.21 = 74,278.88 : x
  2. Step 2: Convert to fraction form
    134,709.27/185,895.21 = 74,278.88/x
  3. Step 3: Cross multiply
    134,709.27x = 185,895.21 × 74,278.88
  4. Step 4: Simplify right side
    134,709.27x = 13,808,087,996.16
  5. Step 5: Solve for x
    x = 13,808,087,996.16/134,709.27
  6. Step 6: Final answer
    x = 102,502.88

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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.