Home / 129,209.46-193,763.43-54,365.46

Finding the Fourth Proportional to 129,209.46, 193,763.43 and 54,365.46

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Solution

The fourth proportional to 129,209.46, 193,763.43 and 54,365.46 is: 81,526.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,209.46 : 193,763.43 = 54,365.46 : x
  2. Step 2: Convert to fraction form
    129,209.46/193,763.43 = 54,365.46/x
  3. Step 3: Cross multiply
    129,209.46x = 193,763.43 × 54,365.46
  4. Step 4: Simplify right side
    129,209.46x = 10,534,038,003.13
  5. Step 5: Solve for x
    x = 10,534,038,003.13/129,209.46
  6. Step 6: Final answer
    x = 81,526.83

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1.5x scale

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.