Home / 123,498.06-170,427.50-66,909.43

Finding the Fourth Proportional to 123,498.06, 170,427.50 and 66,909.43

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Solution

The fourth proportional to 123,498.06, 170,427.50 and 66,909.43 is: 92,335.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,498.06 : 170,427.50 = 66,909.43 : x
  2. Step 2: Convert to fraction form
    123,498.06/170,427.50 = 66,909.43/x
  3. Step 3: Cross multiply
    123,498.06x = 170,427.50 × 66,909.43
  4. Step 4: Simplify right side
    123,498.06x = 11,403,206,881.33
  5. Step 5: Solve for x
    x = 11,403,206,881.33/123,498.06
  6. Step 6: Final answer
    x = 92,335.11

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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.