Home / 123,201.80-170,018.34-66,613.04

Finding the Fourth Proportional to 123,201.80, 170,018.34 and 66,613.04

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Solution

The fourth proportional to 123,201.80, 170,018.34 and 66,613.04 is: 91,925.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,201.80 : 170,018.34 = 66,613.04 : x
  2. Step 2: Convert to fraction form
    123,201.80/170,018.34 = 66,613.04/x
  3. Step 3: Cross multiply
    123,201.80x = 170,018.34 × 66,613.04
  4. Step 4: Simplify right side
    123,201.80x = 11,325,438,483.15
  5. Step 5: Solve for x
    x = 11,325,438,483.15/123,201.80
  6. Step 6: Final answer
    x = 91,925.92

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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.