Home / 170,612.10-255,918.12-91,617.66

Finding the Fourth Proportional to 170,612.10, 255,918.12 and 91,617.66

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Solution

The fourth proportional to 170,612.10, 255,918.12 and 91,617.66 is: 137,426.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,612.10 : 255,918.12 = 91,617.66 : x
  2. Step 2: Convert to fraction form
    170,612.10/255,918.12 = 91,617.66/x
  3. Step 3: Cross multiply
    170,612.10x = 255,918.12 × 91,617.66
  4. Step 4: Simplify right side
    170,612.10x = 23,446,619,306.00
  5. Step 5: Solve for x
    x = 23,446,619,306.00/170,612.10
  6. Step 6: Final answer
    x = 137,426.47

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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.