Home / 142,366.92-196,474.04-78,710.64

Finding the Fourth Proportional to 142,366.92, 196,474.04 and 78,710.64

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Solution

The fourth proportional to 142,366.92, 196,474.04 and 78,710.64 is: 108,624.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,366.92 : 196,474.04 = 78,710.64 : x
  2. Step 2: Convert to fraction form
    142,366.92/196,474.04 = 78,710.64/x
  3. Step 3: Cross multiply
    142,366.92x = 196,474.04 × 78,710.64
  4. Step 4: Simplify right side
    142,366.92x = 15,464,597,431.79
  5. Step 5: Solve for x
    x = 15,464,597,431.79/142,366.92
  6. Step 6: Final answer
    x = 108,624.94

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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.