Home / 144,742.40-217,036.80-51,251.20

Finding the Fourth Proportional to 144,742.40, 217,036.80 and 51,251.20

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Solution

The fourth proportional to 144,742.40, 217,036.80 and 51,251.20 is: 76,849.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,742.40 : 217,036.80 = 51,251.20 : x
  2. Step 2: Convert to fraction form
    144,742.40/217,036.80 = 51,251.20/x
  3. Step 3: Cross multiply
    144,742.40x = 217,036.80 × 51,251.20
  4. Step 4: Simplify right side
    144,742.40x = 11,123,396,444.16
  5. Step 5: Solve for x
    x = 11,123,396,444.16/144,742.40
  6. Step 6: Final answer
    x = 76,849.61

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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.