Home / 123,306.72-170,145.02-74,883.47

Finding the Fourth Proportional to 123,306.72, 170,145.02 and 74,883.47

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Solution

The fourth proportional to 123,306.72, 170,145.02 and 74,883.47 is: 103,328.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,306.72 : 170,145.02 = 74,883.47 : x
  2. Step 2: Convert to fraction form
    123,306.72/170,145.02 = 74,883.47/x
  3. Step 3: Cross multiply
    123,306.72x = 170,145.02 × 74,883.47
  4. Step 4: Simplify right side
    123,306.72x = 12,741,049,500.82
  5. Step 5: Solve for x
    x = 12,741,049,500.82/123,306.72
  6. Step 6: Final answer
    x = 103,328.10

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.