Home / 123,217.32-170,039.70-69,502.17

Finding the Fourth Proportional to 123,217.32, 170,039.70 and 69,502.17

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Solution

The fourth proportional to 123,217.32, 170,039.70 and 69,502.17 is: 95,912.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,217.32 : 170,039.70 = 69,502.17 : x
  2. Step 2: Convert to fraction form
    123,217.32/170,039.70 = 69,502.17/x
  3. Step 3: Cross multiply
    123,217.32x = 170,039.70 × 69,502.17
  4. Step 4: Simplify right side
    123,217.32x = 11,818,128,136.15
  5. Step 5: Solve for x
    x = 11,818,128,136.15/123,217.32
  6. Step 6: Final answer
    x = 95,912.88

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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.