Home / 123,454.13-170,367.91-66,866.72

Finding the Fourth Proportional to 123,454.13, 170,367.91 and 66,866.72

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Solution

The fourth proportional to 123,454.13, 170,367.91 and 66,866.72 is: 92,276.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,454.13 : 170,367.91 = 66,866.72 : x
  2. Step 2: Convert to fraction form
    123,454.13/170,367.91 = 66,866.72/x
  3. Step 3: Cross multiply
    123,454.13x = 170,367.91 × 66,866.72
  4. Step 4: Simplify right side
    123,454.13x = 11,391,942,315.95
  5. Step 5: Solve for x
    x = 11,391,942,315.95/123,454.13
  6. Step 6: Final answer
    x = 92,276.72

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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.