Home / 124,788.72-172,208.46-68,200.08

Finding the Fourth Proportional to 124,788.72, 172,208.46 and 68,200.08

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Solution

The fourth proportional to 124,788.72, 172,208.46 and 68,200.08 is: 94,116.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,788.72 : 172,208.46 = 68,200.08 : x
  2. Step 2: Convert to fraction form
    124,788.72/172,208.46 = 68,200.08/x
  3. Step 3: Cross multiply
    124,788.72x = 172,208.46 × 68,200.08
  4. Step 4: Simplify right side
    124,788.72x = 11,744,630,748.68
  5. Step 5: Solve for x
    x = 11,744,630,748.68/124,788.72
  6. Step 6: Final answer
    x = 94,116.12

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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.