Home / 123,397.44-170,287.16-69,679.32

Finding the Fourth Proportional to 123,397.44, 170,287.16 and 69,679.32

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Solution

The fourth proportional to 123,397.44, 170,287.16 and 69,679.32 is: 96,156.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,397.44 : 170,287.16 = 69,679.32 : x
  2. Step 2: Convert to fraction form
    123,397.44/170,287.16 = 69,679.32/x
  3. Step 3: Cross multiply
    123,397.44x = 170,287.16 × 69,679.32
  4. Step 4: Simplify right side
    123,397.44x = 11,865,493,165.13
  5. Step 5: Solve for x
    x = 11,865,493,165.13/123,397.44
  6. Step 6: Final answer
    x = 96,156.72

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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.