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Finding the Fourth Proportional to 159,612.22, 220,258.03 and 87,013.38

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Solution

The fourth proportional to 159,612.22, 220,258.03 and 87,013.38 is: 120,074.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,612.22 : 220,258.03 = 87,013.38 : x
  2. Step 2: Convert to fraction form
    159,612.22/220,258.03 = 87,013.38/x
  3. Step 3: Cross multiply
    159,612.22x = 220,258.03 × 87,013.38
  4. Step 4: Simplify right side
    159,612.22x = 19,165,395,444.91
  5. Step 5: Solve for x
    x = 19,165,395,444.91/159,612.22
  6. Step 6: Final answer
    x = 120,074.74

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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.