Home / 132,370.81-182,698.28-78,645.48

Finding the Fourth Proportional to 132,370.81, 182,698.28 and 78,645.48

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Solution

The fourth proportional to 132,370.81, 182,698.28 and 78,645.48 is: 108,546.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,370.81 : 182,698.28 = 78,645.48 : x
  2. Step 2: Convert to fraction form
    132,370.81/182,698.28 = 78,645.48/x
  3. Step 3: Cross multiply
    132,370.81x = 182,698.28 × 78,645.48
  4. Step 4: Simplify right side
    132,370.81x = 14,368,394,612.41
  5. Step 5: Solve for x
    x = 14,368,394,612.41/132,370.81
  6. Step 6: Final answer
    x = 108,546.55

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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.