Home / 199,904.32-275,841.30-128,381.14

Finding the Fourth Proportional to 199,904.32, 275,841.30 and 128,381.14

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Solution

The fourth proportional to 199,904.32, 275,841.30 and 128,381.14 is: 177,148.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,904.32 : 275,841.30 = 128,381.14 : x
  2. Step 2: Convert to fraction form
    199,904.32/275,841.30 = 128,381.14/x
  3. Step 3: Cross multiply
    199,904.32x = 275,841.30 × 128,381.14
  4. Step 4: Simplify right side
    199,904.32x = 35,412,820,553.08
  5. Step 5: Solve for x
    x = 35,412,820,553.08/199,904.32
  6. Step 6: Final answer
    x = 177,148.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.