Home / 125,175.04-172,734.96-68,585.20

Finding the Fourth Proportional to 125,175.04, 172,734.96 and 68,585.20

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Solution

The fourth proportional to 125,175.04, 172,734.96 and 68,585.20 is: 94,643.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,175.04 : 172,734.96 = 68,585.20 : x
  2. Step 2: Convert to fraction form
    125,175.04/172,734.96 = 68,585.20/x
  3. Step 3: Cross multiply
    125,175.04x = 172,734.96 × 68,585.20
  4. Step 4: Simplify right side
    125,175.04x = 11,847,061,778.59
  5. Step 5: Solve for x
    x = 11,847,061,778.59/125,175.04
  6. Step 6: Final answer
    x = 94,643.96

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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.