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Finding the Fourth Proportional to 155,107.89, 232,685.46 and 79,164.95

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Solution

The fourth proportional to 155,107.89, 232,685.46 and 79,164.95 is: 118,759.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,107.89 : 232,685.46 = 79,164.95 : x
  2. Step 2: Convert to fraction form
    155,107.89/232,685.46 = 79,164.95/x
  3. Step 3: Cross multiply
    155,107.89x = 232,685.46 × 79,164.95
  4. Step 4: Simplify right side
    155,107.89x = 18,420,531,643.20
  5. Step 5: Solve for x
    x = 18,420,531,643.20/155,107.89
  6. Step 6: Final answer
    x = 118,759.48

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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.