Home / 132,431.60-198,649.56-38,946.80

Finding the Fourth Proportional to 132,431.60, 198,649.56 and 38,946.80

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Solution

The fourth proportional to 132,431.60, 198,649.56 and 38,946.80 is: 58,420.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,431.60 : 198,649.56 = 38,946.80 : x
  2. Step 2: Convert to fraction form
    132,431.60/198,649.56 = 38,946.80/x
  3. Step 3: Cross multiply
    132,431.60x = 198,649.56 × 38,946.80
  4. Step 4: Simplify right side
    132,431.60x = 7,736,764,683.41
  5. Step 5: Solve for x
    x = 7,736,764,683.41/132,431.60
  6. Step 6: Final answer
    x = 58,420.84

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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.