Home / 123,609.20-170,579.76-67,020.16

Finding the Fourth Proportional to 123,609.20, 170,579.76 and 67,020.16

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Solution

The fourth proportional to 123,609.20, 170,579.76 and 67,020.16 is: 92,487.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,609.20 : 170,579.76 = 67,020.16 : x
  2. Step 2: Convert to fraction form
    123,609.20/170,579.76 = 67,020.16/x
  3. Step 3: Cross multiply
    123,609.20x = 170,579.76 × 67,020.16
  4. Step 4: Simplify right side
    123,609.20x = 11,432,282,807.96
  5. Step 5: Solve for x
    x = 11,432,282,807.96/123,609.20
  6. Step 6: Final answer
    x = 92,487.31

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1.5x scale

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.