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Finding the Fourth Proportional to 159,099.32, 219,557.02 and 87,483.98

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Solution

The fourth proportional to 159,099.32, 219,557.02 and 87,483.98 is: 120,727.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,099.32 : 219,557.02 = 87,483.98 : x
  2. Step 2: Convert to fraction form
    159,099.32/219,557.02 = 87,483.98/x
  3. Step 3: Cross multiply
    159,099.32x = 219,557.02 × 87,483.98
  4. Step 4: Simplify right side
    159,099.32x = 19,207,722,276.72
  5. Step 5: Solve for x
    x = 19,207,722,276.72/159,099.32
  6. Step 6: Final answer
    x = 120,727.87

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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.