Home / 115,209.60-172,843.55-48,615.45

Finding the Fourth Proportional to 115,209.60, 172,843.55 and 48,615.45

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Solution

The fourth proportional to 115,209.60, 172,843.55 and 48,615.45 is: 72,935.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,209.60 : 172,843.55 = 48,615.45 : x
  2. Step 2: Convert to fraction form
    115,209.60/172,843.55 = 48,615.45/x
  3. Step 3: Cross multiply
    115,209.60x = 172,843.55 × 48,615.45
  4. Step 4: Simplify right side
    115,209.60x = 8,402,866,962.85
  5. Step 5: Solve for x
    x = 8,402,866,962.85/115,209.60
  6. Step 6: Final answer
    x = 72,935.48

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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.