Home / 123,502.14-170,439.60-69,789.42

Finding the Fourth Proportional to 123,502.14, 170,439.60 and 69,789.42

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Solution

The fourth proportional to 123,502.14, 170,439.60 and 69,789.42 is: 96,313.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,502.14 : 170,439.60 = 69,789.42 : x
  2. Step 2: Convert to fraction form
    123,502.14/170,439.60 = 69,789.42/x
  3. Step 3: Cross multiply
    123,502.14x = 170,439.60 × 69,789.42
  4. Step 4: Simplify right side
    123,502.14x = 11,894,880,829.03
  5. Step 5: Solve for x
    x = 11,894,880,829.03/123,502.14
  6. Step 6: Final answer
    x = 96,313.16

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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.