Home / 142,251.39-196,305.53-78,587.82

Finding the Fourth Proportional to 142,251.39, 196,305.53 and 78,587.82

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Solution

The fourth proportional to 142,251.39, 196,305.53 and 78,587.82 is: 108,450.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,251.39 : 196,305.53 = 78,587.82 : x
  2. Step 2: Convert to fraction form
    142,251.39/196,305.53 = 78,587.82/x
  3. Step 3: Cross multiply
    142,251.39x = 196,305.53 × 78,587.82
  4. Step 4: Simplify right side
    142,251.39x = 15,427,223,263.71
  5. Step 5: Solve for x
    x = 15,427,223,263.71/142,251.39
  6. Step 6: Final answer
    x = 108,450.42

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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.