Home / 170,739.20-255,525.60-156,742.40

Finding the Fourth Proportional to 170,739.20, 255,525.60 and 156,742.40

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Solution

The fourth proportional to 170,739.20, 255,525.60 and 156,742.40 is: 234,578.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,739.20 : 255,525.60 = 156,742.40 : x
  2. Step 2: Convert to fraction form
    170,739.20/255,525.60 = 156,742.40/x
  3. Step 3: Cross multiply
    170,739.20x = 255,525.60 × 156,742.40
  4. Step 4: Simplify right side
    170,739.20x = 40,051,695,805.44
  5. Step 5: Solve for x
    x = 40,051,695,805.44/170,739.20
  6. Step 6: Final answer
    x = 234,578.21

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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.