Home / 123,581.56-170,543.46-66,993.34

Finding the Fourth Proportional to 123,581.56, 170,543.46 and 66,993.34

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Solution

The fourth proportional to 123,581.56, 170,543.46 and 66,993.34 is: 92,451.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,581.56 : 170,543.46 = 66,993.34 : x
  2. Step 2: Convert to fraction form
    123,581.56/170,543.46 = 66,993.34/x
  3. Step 3: Cross multiply
    123,581.56x = 170,543.46 × 66,993.34
  4. Step 4: Simplify right side
    123,581.56x = 11,425,276,000.56
  5. Step 5: Solve for x
    x = 11,425,276,000.56/123,581.56
  6. Step 6: Final answer
    x = 92,451.30

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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.