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Finding the Fourth Proportional to 159,129.42, 238,676.22 and 40,803.54

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Solution

The fourth proportional to 159,129.42, 238,676.22 and 40,803.54 is: 61,200.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,129.42 : 238,676.22 = 40,803.54 : x
  2. Step 2: Convert to fraction form
    159,129.42/238,676.22 = 40,803.54/x
  3. Step 3: Cross multiply
    159,129.42x = 238,676.22 × 40,803.54
  4. Step 4: Simplify right side
    159,129.42x = 9,738,834,689.82
  5. Step 5: Solve for x
    x = 9,738,834,689.82/159,129.42
  6. Step 6: Final answer
    x = 61,200.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.