Home / 123,871.20-170,937.18-67,281.36

Finding the Fourth Proportional to 123,871.20, 170,937.18 and 67,281.36

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Solution

The fourth proportional to 123,871.20, 170,937.18 and 67,281.36 is: 92,845.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,871.20 : 170,937.18 = 67,281.36 : x
  2. Step 2: Convert to fraction form
    123,871.20/170,937.18 = 67,281.36/x
  3. Step 3: Cross multiply
    123,871.20x = 170,937.18 × 67,281.36
  4. Step 4: Simplify right side
    123,871.20x = 11,500,885,944.96
  5. Step 5: Solve for x
    x = 11,500,885,944.96/123,871.20
  6. Step 6: Final answer
    x = 92,845.52

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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.