Home / 123,577.18-170,537.61-66,988.54

Finding the Fourth Proportional to 123,577.18, 170,537.61 and 66,988.54

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Solution

The fourth proportional to 123,577.18, 170,537.61 and 66,988.54 is: 92,444.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,577.18 : 170,537.61 = 66,988.54 : x
  2. Step 2: Convert to fraction form
    123,577.18/170,537.61 = 66,988.54/x
  3. Step 3: Cross multiply
    123,577.18x = 170,537.61 × 66,988.54
  4. Step 4: Simplify right side
    123,577.18x = 11,424,065,508.99
  5. Step 5: Solve for x
    x = 11,424,065,508.99/123,577.18
  6. Step 6: Final answer
    x = 92,444.78

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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.