Home / 143,818.29-215,727.33-38,637.21

Finding the Fourth Proportional to 143,818.29, 215,727.33 and 38,637.21

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Solution

The fourth proportional to 143,818.29, 215,727.33 and 38,637.21 is: 57,955.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,818.29 : 215,727.33 = 38,637.21 : x
  2. Step 2: Convert to fraction form
    143,818.29/215,727.33 = 38,637.21/x
  3. Step 3: Cross multiply
    143,818.29x = 215,727.33 × 38,637.21
  4. Step 4: Simplify right side
    143,818.29x = 8,335,102,151.95
  5. Step 5: Solve for x
    x = 8,335,102,151.95/143,818.29
  6. Step 6: Final answer
    x = 57,955.79

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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.