Home / 143,862.03-215,926.13-72,834.57

Finding the Fourth Proportional to 143,862.03, 215,926.13 and 72,834.57

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Solution

The fourth proportional to 143,862.03, 215,926.13 and 72,834.57 is: 109,319.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,862.03 : 215,926.13 = 72,834.57 : x
  2. Step 2: Convert to fraction form
    143,862.03/215,926.13 = 72,834.57/x
  3. Step 3: Cross multiply
    143,862.03x = 215,926.13 × 72,834.57
  4. Step 4: Simplify right side
    143,862.03x = 15,726,886,466.14
  5. Step 5: Solve for x
    x = 15,726,886,466.14/143,862.03
  6. Step 6: Final answer
    x = 109,319.23

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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.