Home / 170,321.75-255,482.55-90,343.16

Finding the Fourth Proportional to 170,321.75, 255,482.55 and 90,343.16

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Solution

The fourth proportional to 170,321.75, 255,482.55 and 90,343.16 is: 135,514.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,321.75 : 255,482.55 = 90,343.16 : x
  2. Step 2: Convert to fraction form
    170,321.75/255,482.55 = 90,343.16/x
  3. Step 3: Cross multiply
    170,321.75x = 255,482.55 × 90,343.16
  4. Step 4: Simplify right side
    170,321.75x = 23,081,099,614.45
  5. Step 5: Solve for x
    x = 23,081,099,614.45/170,321.75
  6. Step 6: Final answer
    x = 135,514.70

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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.