Home / 170,026.20-255,039.30-143,782.20

Finding the Fourth Proportional to 170,026.20, 255,039.30 and 143,782.20

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Solution

The fourth proportional to 170,026.20, 255,039.30 and 143,782.20 is: 215,673.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,026.20 : 255,039.30 = 143,782.20 : x
  2. Step 2: Convert to fraction form
    170,026.20/255,039.30 = 143,782.20/x
  3. Step 3: Cross multiply
    170,026.20x = 255,039.30 × 143,782.20
  4. Step 4: Simplify right side
    170,026.20x = 36,670,111,640.46
  5. Step 5: Solve for x
    x = 36,670,111,640.46/170,026.20
  6. Step 6: Final answer
    x = 215,673.30

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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.