Home / 142,532.46-196,691.90-78,870.24

Finding the Fourth Proportional to 142,532.46, 196,691.90 and 78,870.24

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Solution

The fourth proportional to 142,532.46, 196,691.90 and 78,870.24 is: 108,839.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,532.46 : 196,691.90 = 78,870.24 : x
  2. Step 2: Convert to fraction form
    142,532.46/196,691.90 = 78,870.24/x
  3. Step 3: Cross multiply
    142,532.46x = 196,691.90 × 78,870.24
  4. Step 4: Simplify right side
    142,532.46x = 15,513,136,964.70
  5. Step 5: Solve for x
    x = 15,513,136,964.70/142,532.46
  6. Step 6: Final answer
    x = 108,839.33

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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.