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Finding the Fourth Proportional to 155,465.80, 233,025.90 and 66,704.20

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Solution

The fourth proportional to 155,465.80, 233,025.90 and 66,704.20 is: 99,982.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,465.80 : 233,025.90 = 66,704.20 : x
  2. Step 2: Convert to fraction form
    155,465.80/233,025.90 = 66,704.20/x
  3. Step 3: Cross multiply
    155,465.80x = 233,025.90 × 66,704.20
  4. Step 4: Simplify right side
    155,465.80x = 15,543,806,238.78
  5. Step 5: Solve for x
    x = 15,543,806,238.78/155,465.80
  6. Step 6: Final answer
    x = 99,982.16

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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.