Home / 123,445.72-170,355.33-66,857.11

Finding the Fourth Proportional to 123,445.72, 170,355.33 and 66,857.11

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Solution

The fourth proportional to 123,445.72, 170,355.33 and 66,857.11 is: 92,262.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,445.72 : 170,355.33 = 66,857.11 : x
  2. Step 2: Convert to fraction form
    123,445.72/170,355.33 = 66,857.11/x
  3. Step 3: Cross multiply
    123,445.72x = 170,355.33 × 66,857.11
  4. Step 4: Simplify right side
    123,445.72x = 11,389,465,036.90
  5. Step 5: Solve for x
    x = 11,389,465,036.90/123,445.72
  6. Step 6: Final answer
    x = 92,262.94

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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.