Home / 129,499.66-193,918.92-103,242.70

Finding the Fourth Proportional to 129,499.66, 193,918.92 and 103,242.70

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Solution

The fourth proportional to 129,499.66, 193,918.92 and 103,242.70 is: 154,600.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,499.66 : 193,918.92 = 103,242.70 : x
  2. Step 2: Convert to fraction form
    129,499.66/193,918.92 = 103,242.70/x
  3. Step 3: Cross multiply
    129,499.66x = 193,918.92 × 103,242.70
  4. Step 4: Simplify right side
    129,499.66x = 20,020,712,881.88
  5. Step 5: Solve for x
    x = 20,020,712,881.88/129,499.66
  6. Step 6: Final answer
    x = 154,600.51

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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.