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Finding the Fourth Proportional to 159,232.44, 219,746.06 and 87,617.72

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Solution

The fourth proportional to 159,232.44, 219,746.06 and 87,617.72 is: 120,915.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,232.44 : 219,746.06 = 87,617.72 : x
  2. Step 2: Convert to fraction form
    159,232.44/219,746.06 = 87,617.72/x
  3. Step 3: Cross multiply
    159,232.44x = 219,746.06 × 87,617.72
  4. Step 4: Simplify right side
    159,232.44x = 19,253,648,756.18
  5. Step 5: Solve for x
    x = 19,253,648,756.18/159,232.44
  6. Step 6: Final answer
    x = 120,915.37

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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.