Home / 158,818.68-219,172.52-87,201.72

Finding the Fourth Proportional to 158,818.68, 219,172.52 and 87,201.72

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Solution

The fourth proportional to 158,818.68, 219,172.52 and 87,201.72 is: 120,339.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,818.68 : 219,172.52 = 87,201.72 : x
  2. Step 2: Convert to fraction form
    158,818.68/219,172.52 = 87,201.72/x
  3. Step 3: Cross multiply
    158,818.68x = 219,172.52 × 87,201.72
  4. Step 4: Simplify right side
    158,818.68x = 19,112,220,720.73
  5. Step 5: Solve for x
    x = 19,112,220,720.73/158,818.68
  6. Step 6: Final answer
    x = 120,339.88

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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.