Home / 109,743.30-164,614.95-74,313.90

Finding the Fourth Proportional to 109,743.30, 164,614.95 and 74,313.90

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Solution

The fourth proportional to 109,743.30, 164,614.95 and 74,313.90 is: 111,470.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,743.30 : 164,614.95 = 74,313.90 : x
  2. Step 2: Convert to fraction form
    109,743.30/164,614.95 = 74,313.90/x
  3. Step 3: Cross multiply
    109,743.30x = 164,614.95 × 74,313.90
  4. Step 4: Simplify right side
    109,743.30x = 12,233,178,932.81
  5. Step 5: Solve for x
    x = 12,233,178,932.81/109,743.30
  6. Step 6: Final answer
    x = 111,470.85

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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.