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Finding the Fourth Proportional to 160,144.60, 240,015.30 and 81,280.60

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Solution

The fourth proportional to 160,144.60, 240,015.30 and 81,280.60 is: 121,818.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,144.60 : 240,015.30 = 81,280.60 : x
  2. Step 2: Convert to fraction form
    160,144.60/240,015.30 = 81,280.60/x
  3. Step 3: Cross multiply
    160,144.60x = 240,015.30 × 81,280.60
  4. Step 4: Simplify right side
    160,144.60x = 19,508,587,593.18
  5. Step 5: Solve for x
    x = 19,508,587,593.18/160,144.60
  6. Step 6: Final answer
    x = 121,818.58

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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.