Home / 132,211.37-198,395.85-47,978.10

Finding the Fourth Proportional to 132,211.37, 198,395.85 and 47,978.10

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Solution

The fourth proportional to 132,211.37, 198,395.85 and 47,978.10 is: 71,995.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,211.37 : 198,395.85 = 47,978.10 : x
  2. Step 2: Convert to fraction form
    132,211.37/198,395.85 = 47,978.10/x
  3. Step 3: Cross multiply
    132,211.37x = 198,395.85 × 47,978.10
  4. Step 4: Simplify right side
    132,211.37x = 9,518,655,930.89
  5. Step 5: Solve for x
    x = 9,518,655,930.89/132,211.37
  6. Step 6: Final answer
    x = 71,995.74

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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.