Home / 194,145.10-291,217.65-115,218.70

Finding the Fourth Proportional to 194,145.10, 291,217.65 and 115,218.70

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Solution

The fourth proportional to 194,145.10, 291,217.65 and 115,218.70 is: 172,828.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,145.10 : 291,217.65 = 115,218.70 : x
  2. Step 2: Convert to fraction form
    194,145.10/291,217.65 = 115,218.70/x
  3. Step 3: Cross multiply
    194,145.10x = 291,217.65 × 115,218.70
  4. Step 4: Simplify right side
    194,145.10x = 33,553,719,050.06
  5. Step 5: Solve for x
    x = 33,553,719,050.06/194,145.10
  6. Step 6: Final answer
    x = 172,828.05

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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.