Home / 123,288.25-170,139.02-66,700.84

Finding the Fourth Proportional to 123,288.25, 170,139.02 and 66,700.84

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Solution

The fourth proportional to 123,288.25, 170,139.02 and 66,700.84 is: 92,047.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,288.25 : 170,139.02 = 66,700.84 : x
  2. Step 2: Convert to fraction form
    123,288.25/170,139.02 = 66,700.84/x
  3. Step 3: Cross multiply
    123,288.25x = 170,139.02 × 66,700.84
  4. Step 4: Simplify right side
    123,288.25x = 11,348,415,550.78
  5. Step 5: Solve for x
    x = 11,348,415,550.78/123,288.25
  6. Step 6: Final answer
    x = 92,047.83

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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.