Home / 132,442.40-198,663.60-87,924.80

Finding the Fourth Proportional to 132,442.40, 198,663.60 and 87,924.80

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Solution

The fourth proportional to 132,442.40, 198,663.60 and 87,924.80 is: 131,887.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,442.40 : 198,663.60 = 87,924.80 : x
  2. Step 2: Convert to fraction form
    132,442.40/198,663.60 = 87,924.80/x
  3. Step 3: Cross multiply
    132,442.40x = 198,663.60 × 87,924.80
  4. Step 4: Simplify right side
    132,442.40x = 17,467,457,297.28
  5. Step 5: Solve for x
    x = 17,467,457,297.28/132,442.40
  6. Step 6: Final answer
    x = 131,887.20

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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.