Home / 142,932.62-197,242.02-79,276.34

Finding the Fourth Proportional to 142,932.62, 197,242.02 and 79,276.34

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Solution

The fourth proportional to 142,932.62, 197,242.02 and 79,276.34 is: 109,398.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,932.62 : 197,242.02 = 79,276.34 : x
  2. Step 2: Convert to fraction form
    142,932.62/197,242.02 = 79,276.34/x
  3. Step 3: Cross multiply
    142,932.62x = 197,242.02 × 79,276.34
  4. Step 4: Simplify right side
    142,932.62x = 15,636,625,439.81
  5. Step 5: Solve for x
    x = 15,636,625,439.81/142,932.62
  6. Step 6: Final answer
    x = 109,398.58

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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.