Home / 155,531.20-233,296.80-66,769.60

Finding the Fourth Proportional to 155,531.20, 233,296.80 and 66,769.60

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Solution

The fourth proportional to 155,531.20, 233,296.80 and 66,769.60 is: 100,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,531.20 : 233,296.80 = 66,769.60 : x
  2. Step 2: Convert to fraction form
    155,531.20/233,296.80 = 66,769.60/x
  3. Step 3: Cross multiply
    155,531.20x = 233,296.80 × 66,769.60
  4. Step 4: Simplify right side
    155,531.20x = 15,577,134,017.28
  5. Step 5: Solve for x
    x = 15,577,134,017.28/155,531.20
  6. Step 6: Final answer
    x = 100,154.40

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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.