Home / 123,498.24-170,427.74-66,909.62

Finding the Fourth Proportional to 123,498.24, 170,427.74 and 66,909.62

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Solution

The fourth proportional to 123,498.24, 170,427.74 and 66,909.62 is: 92,335.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,498.24 : 170,427.74 = 66,909.62 : x
  2. Step 2: Convert to fraction form
    123,498.24/170,427.74 = 66,909.62/x
  3. Step 3: Cross multiply
    123,498.24x = 170,427.74 × 66,909.62
  4. Step 4: Simplify right side
    123,498.24x = 11,403,255,320.86
  5. Step 5: Solve for x
    x = 11,403,255,320.86/123,498.24
  6. Step 6: Final answer
    x = 92,335.37

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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.