Home / 123,346.80-170,218.76-66,758.18

Finding the Fourth Proportional to 123,346.80, 170,218.76 and 66,758.18

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Solution

The fourth proportional to 123,346.80, 170,218.76 and 66,758.18 is: 92,126.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,346.80 : 170,218.76 = 66,758.18 : x
  2. Step 2: Convert to fraction form
    123,346.80/170,218.76 = 66,758.18/x
  3. Step 3: Cross multiply
    123,346.80x = 170,218.76 × 66,758.18
  4. Step 4: Simplify right side
    123,346.80x = 11,363,493,434.57
  5. Step 5: Solve for x
    x = 11,363,493,434.57/123,346.80
  6. Step 6: Final answer
    x = 92,126.37

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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.