Home / 170,190.12-255,421.26-76,703.16

Finding the Fourth Proportional to 170,190.12, 255,421.26 and 76,703.16

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Solution

The fourth proportional to 170,190.12, 255,421.26 and 76,703.16 is: 115,116.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,190.12 : 255,421.26 = 76,703.16 : x
  2. Step 2: Convert to fraction form
    170,190.12/255,421.26 = 76,703.16/x
  3. Step 3: Cross multiply
    170,190.12x = 255,421.26 × 76,703.16
  4. Step 4: Simplify right side
    170,190.12x = 19,591,617,773.18
  5. Step 5: Solve for x
    x = 19,591,617,773.18/170,190.12
  6. Step 6: Final answer
    x = 115,116.07

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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.