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Finding the Fourth Proportional to 159,599.61, 220,244.79 and 87,003.30

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Solution

The fourth proportional to 159,599.61, 220,244.79 and 87,003.30 is: 120,063.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,599.61 : 220,244.79 = 87,003.30 : x
  2. Step 2: Convert to fraction form
    159,599.61/220,244.79 = 87,003.30/x
  3. Step 3: Cross multiply
    159,599.61x = 220,244.79 × 87,003.30
  4. Step 4: Simplify right side
    159,599.61x = 19,162,023,537.81
  5. Step 5: Solve for x
    x = 19,162,023,537.81/159,599.61
  6. Step 6: Final answer
    x = 120,063.10

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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.