Home / 123,388.15-170,279.14-69,681.24

Finding the Fourth Proportional to 123,388.15, 170,279.14 and 69,681.24

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Solution

The fourth proportional to 123,388.15, 170,279.14 and 69,681.24 is: 96,162.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,388.15 : 170,279.14 = 69,681.24 : x
  2. Step 2: Convert to fraction form
    123,388.15/170,279.14 = 69,681.24/x
  3. Step 3: Cross multiply
    123,388.15x = 170,279.14 × 69,681.24
  4. Step 4: Simplify right side
    123,388.15x = 11,865,260,902.89
  5. Step 5: Solve for x
    x = 11,865,260,902.89/123,388.15
  6. Step 6: Final answer
    x = 96,162.08

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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.