Home / 142,952.58-197,298.18-79,310.88

Finding the Fourth Proportional to 142,952.58, 197,298.18 and 79,310.88

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Solution

The fourth proportional to 142,952.58, 197,298.18 and 79,310.88 is: 109,462.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,952.58 : 197,298.18 = 79,310.88 : x
  2. Step 2: Convert to fraction form
    142,952.58/197,298.18 = 79,310.88/x
  3. Step 3: Cross multiply
    142,952.58x = 197,298.18 × 79,310.88
  4. Step 4: Simplify right side
    142,952.58x = 15,647,892,278.20
  5. Step 5: Solve for x
    x = 15,647,892,278.20/142,952.58
  6. Step 6: Final answer
    x = 109,462.12

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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.