Home / 155,659.10-233,561.55-80,863.70

Finding the Fourth Proportional to 155,659.10, 233,561.55 and 80,863.70

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Solution

The fourth proportional to 155,659.10, 233,561.55 and 80,863.70 is: 121,333.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,659.10 : 233,561.55 = 80,863.70 : x
  2. Step 2: Convert to fraction form
    155,659.10/233,561.55 = 80,863.70/x
  3. Step 3: Cross multiply
    155,659.10x = 233,561.55 × 80,863.70
  4. Step 4: Simplify right side
    155,659.10x = 18,886,651,110.74
  5. Step 5: Solve for x
    x = 18,886,651,110.74/155,659.10
  6. Step 6: Final answer
    x = 121,333.42

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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.