Home / 142,269.92-196,424-91,304.60

Finding the Fourth Proportional to 142,269.92, 196,424 and 91,304.60

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Solution

The fourth proportional to 142,269.92, 196,424 and 91,304.60 is: 126,059.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,269.92 : 196,424 = 91,304.60 : x
  2. Step 2: Convert to fraction form
    142,269.92/196,424 = 91,304.60/x
  3. Step 3: Cross multiply
    142,269.92x = 196,424 × 91,304.60
  4. Step 4: Simplify right side
    142,269.92x = 17,934,414,750.40
  5. Step 5: Solve for x
    x = 17,934,414,750.40/142,269.92
  6. Step 6: Final answer
    x = 126,059.08

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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.