Home / 142,908.17-197,221.15-79,244.60

Finding the Fourth Proportional to 142,908.17, 197,221.15 and 79,244.60

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Solution

The fourth proportional to 142,908.17, 197,221.15 and 79,244.60 is: 109,361.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,908.17 : 197,221.15 = 79,244.60 : x
  2. Step 2: Convert to fraction form
    142,908.17/197,221.15 = 79,244.60/x
  3. Step 3: Cross multiply
    142,908.17x = 197,221.15 × 79,244.60
  4. Step 4: Simplify right side
    142,908.17x = 15,628,711,143.29
  5. Step 5: Solve for x
    x = 15,628,711,143.29/142,908.17
  6. Step 6: Final answer
    x = 109,361.92

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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.