Home / 132,138.92-182,503.20-87,018.68

Finding the Fourth Proportional to 132,138.92, 182,503.20 and 87,018.68

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Solution

The fourth proportional to 132,138.92, 182,503.20 and 87,018.68 is: 120,185.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,138.92 : 182,503.20 = 87,018.68 : x
  2. Step 2: Convert to fraction form
    132,138.92/182,503.20 = 87,018.68/x
  3. Step 3: Cross multiply
    132,138.92x = 182,503.20 × 87,018.68
  4. Step 4: Simplify right side
    132,138.92x = 15,881,187,559.78
  5. Step 5: Solve for x
    x = 15,881,187,559.78/132,138.92
  6. Step 6: Final answer
    x = 120,185.54

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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.