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Finding the Fourth Proportional to 121,402.80, 182,109.60 and 41,439.60

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Solution

The fourth proportional to 121,402.80, 182,109.60 and 41,439.60 is: 62,161.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,402.80 : 182,109.60 = 41,439.60 : x
  2. Step 2: Convert to fraction form
    121,402.80/182,109.60 = 41,439.60/x
  3. Step 3: Cross multiply
    121,402.80x = 182,109.60 × 41,439.60
  4. Step 4: Simplify right side
    121,402.80x = 7,546,548,980.16
  5. Step 5: Solve for x
    x = 7,546,548,980.16/121,402.80
  6. Step 6: Final answer
    x = 62,161.24

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1.5x scale

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.