Home / 170,321.50-255,482.18-90,342.91

Finding the Fourth Proportional to 170,321.50, 255,482.18 and 90,342.91

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Solution

The fourth proportional to 170,321.50, 255,482.18 and 90,342.91 is: 135,514.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,321.50 : 255,482.18 = 90,342.91 : x
  2. Step 2: Convert to fraction form
    170,321.50/255,482.18 = 90,342.91/x
  3. Step 3: Cross multiply
    170,321.50x = 255,482.18 × 90,342.91
  4. Step 4: Simplify right side
    170,321.50x = 23,081,001,865.22
  5. Step 5: Solve for x
    x = 23,081,001,865.22/170,321.50
  6. Step 6: Final answer
    x = 135,514.32

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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.