Home / 123,301.30-170,155.78-66,712.68

Finding the Fourth Proportional to 123,301.30, 170,155.78 and 66,712.68

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Solution

The fourth proportional to 123,301.30, 170,155.78 and 66,712.68 is: 92,063.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,301.30 : 170,155.78 = 66,712.68 : x
  2. Step 2: Convert to fraction form
    123,301.30/170,155.78 = 66,712.68/x
  3. Step 3: Cross multiply
    123,301.30x = 170,155.78 × 66,712.68
  4. Step 4: Simplify right side
    123,301.30x = 11,351,548,101.29
  5. Step 5: Solve for x
    x = 11,351,548,101.29/123,301.30
  6. Step 6: Final answer
    x = 92,063.49

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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.