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Finding the Fourth Proportional to 159,122.48, 219,594.72 and 87,508.04

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Solution

The fourth proportional to 159,122.48, 219,594.72 and 87,508.04 is: 120,764.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,122.48 : 219,594.72 = 87,508.04 : x
  2. Step 2: Convert to fraction form
    159,122.48/219,594.72 = 87,508.04/x
  3. Step 3: Cross multiply
    159,122.48x = 219,594.72 × 87,508.04
  4. Step 4: Simplify right side
    159,122.48x = 19,216,303,541.55
  5. Step 5: Solve for x
    x = 19,216,303,541.55/159,122.48
  6. Step 6: Final answer
    x = 120,764.23

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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.