Home / 148,111.20-221,518.80-132,429.60

Finding the Fourth Proportional to 148,111.20, 221,518.80 and 132,429.60

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Solution

The fourth proportional to 148,111.20, 221,518.80 and 132,429.60 is: 198,065.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,111.20 : 221,518.80 = 132,429.60 : x
  2. Step 2: Convert to fraction form
    148,111.20/221,518.80 = 132,429.60/x
  3. Step 3: Cross multiply
    148,111.20x = 221,518.80 × 132,429.60
  4. Step 4: Simplify right side
    148,111.20x = 29,335,646,076.48
  5. Step 5: Solve for x
    x = 29,335,646,076.48/148,111.20
  6. Step 6: Final answer
    x = 198,065.01

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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.