Home / 123,712.73-170,725.55-67,124.10

Finding the Fourth Proportional to 123,712.73, 170,725.55 and 67,124.10

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Solution

The fourth proportional to 123,712.73, 170,725.55 and 67,124.10 is: 92,632.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,712.73 : 170,725.55 = 67,124.10 : x
  2. Step 2: Convert to fraction form
    123,712.73/170,725.55 = 67,124.10/x
  3. Step 3: Cross multiply
    123,712.73x = 170,725.55 × 67,124.10
  4. Step 4: Simplify right side
    123,712.73x = 11,459,798,555.13
  5. Step 5: Solve for x
    x = 11,459,798,555.13/123,712.73
  6. Step 6: Final answer
    x = 92,632.33

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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.