Home / 142,909.67-197,223.23-79,246.10

Finding the Fourth Proportional to 142,909.67, 197,223.23 and 79,246.10

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Solution

The fourth proportional to 142,909.67, 197,223.23 and 79,246.10 is: 109,363.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,909.67 : 197,223.23 = 79,246.10 : x
  2. Step 2: Convert to fraction form
    142,909.67/197,223.23 = 79,246.10/x
  3. Step 3: Cross multiply
    142,909.67x = 197,223.23 × 79,246.10
  4. Step 4: Simplify right side
    142,909.67x = 15,629,172,498.08
  5. Step 5: Solve for x
    x = 15,629,172,498.08/142,909.67
  6. Step 6: Final answer
    x = 109,363.99

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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.