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Finding the Fourth Proportional to 159,802.90, 220,540.45 and 91,843.58

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Solution

The fourth proportional to 159,802.90, 220,540.45 and 91,843.58 is: 126,751.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,802.90 : 220,540.45 = 91,843.58 : x
  2. Step 2: Convert to fraction form
    159,802.90/220,540.45 = 91,843.58/x
  3. Step 3: Cross multiply
    159,802.90x = 220,540.45 × 91,843.58
  4. Step 4: Simplify right side
    159,802.90x = 20,255,224,784.55
  5. Step 5: Solve for x
    x = 20,255,224,784.55/159,802.90
  6. Step 6: Final answer
    x = 126,751.30

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1.5x scale

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.