Home / 132,356.40-198,534.60-76,369.20

Finding the Fourth Proportional to 132,356.40, 198,534.60 and 76,369.20

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Solution

The fourth proportional to 132,356.40, 198,534.60 and 76,369.20 is: 114,553.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,356.40 : 198,534.60 = 76,369.20 : x
  2. Step 2: Convert to fraction form
    132,356.40/198,534.60 = 76,369.20/x
  3. Step 3: Cross multiply
    132,356.40x = 198,534.60 × 76,369.20
  4. Step 4: Simplify right side
    132,356.40x = 15,161,928,574.32
  5. Step 5: Solve for x
    x = 15,161,928,574.32/132,356.40
  6. Step 6: Final answer
    x = 114,553.80

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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.