Home / 115,209.10-172,842.81-48,614.95

Finding the Fourth Proportional to 115,209.10, 172,842.81 and 48,614.95

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Solution

The fourth proportional to 115,209.10, 172,842.81 and 48,614.95 is: 72,934.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,209.10 : 172,842.81 = 48,614.95 : x
  2. Step 2: Convert to fraction form
    115,209.10/172,842.81 = 48,614.95/x
  3. Step 3: Cross multiply
    115,209.10x = 172,842.81 × 48,614.95
  4. Step 4: Simplify right side
    115,209.10x = 8,402,743,458.72
  5. Step 5: Solve for x
    x = 8,402,743,458.72/115,209.10
  6. Step 6: Final answer
    x = 72,934.72

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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.