Home / 88,138.38-132,076.28-48,706.76

Finding the Fourth Proportional to 88,138.38, 132,076.28 and 48,706.76

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Solution

The fourth proportional to 88,138.38, 132,076.28 and 48,706.76 is: 72,987.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,138.38 : 132,076.28 = 48,706.76 : x
  2. Step 2: Convert to fraction form
    88,138.38/132,076.28 = 48,706.76/x
  3. Step 3: Cross multiply
    88,138.38x = 132,076.28 × 48,706.76
  4. Step 4: Simplify right side
    88,138.38x = 6,433,007,671.65
  5. Step 5: Solve for x
    x = 6,433,007,671.65/88,138.38
  6. Step 6: Final answer
    x = 72,987.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.