Home / 123,220.96-170,044.32-66,632.20

Finding the Fourth Proportional to 123,220.96, 170,044.32 and 66,632.20

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Solution

The fourth proportional to 123,220.96, 170,044.32 and 66,632.20 is: 91,952.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,220.96 : 170,044.32 = 66,632.20 : x
  2. Step 2: Convert to fraction form
    123,220.96/170,044.32 = 66,632.20/x
  3. Step 3: Cross multiply
    123,220.96x = 170,044.32 × 66,632.20
  4. Step 4: Simplify right side
    123,220.96x = 11,330,427,139.10
  5. Step 5: Solve for x
    x = 11,330,427,139.10/123,220.96
  6. Step 6: Final answer
    x = 91,952.11

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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.