Home / 129,182.67-193,669.45-40,390.47

Finding the Fourth Proportional to 129,182.67, 193,669.45 and 40,390.47

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Solution

The fourth proportional to 129,182.67, 193,669.45 and 40,390.47 is: 60,553.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,182.67 : 193,669.45 = 40,390.47 : x
  2. Step 2: Convert to fraction form
    129,182.67/193,669.45 = 40,390.47/x
  3. Step 3: Cross multiply
    129,182.67x = 193,669.45 × 40,390.47
  4. Step 4: Simplify right side
    129,182.67x = 7,822,400,009.17
  5. Step 5: Solve for x
    x = 7,822,400,009.17/129,182.67
  6. Step 6: Final answer
    x = 60,553.01

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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.