Home / 123,326.49-170,190.78-66,737.88

Finding the Fourth Proportional to 123,326.49, 170,190.78 and 66,737.88

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Solution

The fourth proportional to 123,326.49, 170,190.78 and 66,737.88 is: 92,098.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,326.49 : 170,190.78 = 66,737.88 : x
  2. Step 2: Convert to fraction form
    123,326.49/170,190.78 = 66,737.88/x
  3. Step 3: Cross multiply
    123,326.49x = 170,190.78 × 66,737.88
  4. Step 4: Simplify right side
    123,326.49x = 11,358,171,852.75
  5. Step 5: Solve for x
    x = 11,358,171,852.75/123,326.49
  6. Step 6: Final answer
    x = 92,098.40

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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.