Home / 129,709.01-193,274.12-115,560.33

Finding the Fourth Proportional to 129,709.01, 193,274.12 and 115,560.33

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Solution

The fourth proportional to 129,709.01, 193,274.12 and 115,560.33 is: 172,191.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,709.01 : 193,274.12 = 115,560.33 : x
  2. Step 2: Convert to fraction form
    129,709.01/193,274.12 = 115,560.33/x
  3. Step 3: Cross multiply
    129,709.01x = 193,274.12 × 115,560.33
  4. Step 4: Simplify right side
    129,709.01x = 22,334,820,509.86
  5. Step 5: Solve for x
    x = 22,334,820,509.86/129,709.01
  6. Step 6: Final answer
    x = 172,191.75

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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.