Home / 129,821.60-193,793.28-114,075.20

Finding the Fourth Proportional to 129,821.60, 193,793.28 and 114,075.20

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Solution

The fourth proportional to 129,821.60, 193,793.28 and 114,075.20 is: 170,287.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,821.60 : 193,793.28 = 114,075.20 : x
  2. Step 2: Convert to fraction form
    129,821.60/193,793.28 = 114,075.20/x
  3. Step 3: Cross multiply
    129,821.60x = 193,793.28 × 114,075.20
  4. Step 4: Simplify right side
    129,821.60x = 22,107,007,174.66
  5. Step 5: Solve for x
    x = 22,107,007,174.66/129,821.60
  6. Step 6: Final answer
    x = 170,287.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.