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Finding the Fourth Proportional to 155,841.25, 233,820.21 and 80,914.63

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Solution

The fourth proportional to 155,841.25, 233,820.21 and 80,914.63 is: 121,402.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,841.25 : 233,820.21 = 80,914.63 : x
  2. Step 2: Convert to fraction form
    155,841.25/233,820.21 = 80,914.63/x
  3. Step 3: Cross multiply
    155,841.25x = 233,820.21 × 80,914.63
  4. Step 4: Simplify right side
    155,841.25x = 18,919,475,778.67
  5. Step 5: Solve for x
    x = 18,919,475,778.67/155,841.25
  6. Step 6: Final answer
    x = 121,402.23

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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.