Home / 128,833.80-193,250.70-124,168.20

Finding the Fourth Proportional to 128,833.80, 193,250.70 and 124,168.20

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Solution

The fourth proportional to 128,833.80, 193,250.70 and 124,168.20 is: 186,252.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,833.80 : 193,250.70 = 124,168.20 : x
  2. Step 2: Convert to fraction form
    128,833.80/193,250.70 = 124,168.20/x
  3. Step 3: Cross multiply
    128,833.80x = 193,250.70 × 124,168.20
  4. Step 4: Simplify right side
    128,833.80x = 23,995,591,567.74
  5. Step 5: Solve for x
    x = 23,995,591,567.74/128,833.80
  6. Step 6: Final answer
    x = 186,252.30

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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.