Home / 123,693.28-170,693.36-68,500.69

Finding the Fourth Proportional to 123,693.28, 170,693.36 and 68,500.69

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Solution

The fourth proportional to 123,693.28, 170,693.36 and 68,500.69 is: 94,529.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,693.28 : 170,693.36 = 68,500.69 : x
  2. Step 2: Convert to fraction form
    123,693.28/170,693.36 = 68,500.69/x
  3. Step 3: Cross multiply
    123,693.28x = 170,693.36 × 68,500.69
  4. Step 4: Simplify right side
    123,693.28x = 11,692,612,595.92
  5. Step 5: Solve for x
    x = 11,692,612,595.92/123,693.28
  6. Step 6: Final answer
    x = 94,529.09

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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.