Home / 111,929.88-167,213.67-80,087.16

Finding the Fourth Proportional to 111,929.88, 167,213.67 and 80,087.16

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Solution

The fourth proportional to 111,929.88, 167,213.67 and 80,087.16 is: 119,643.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,929.88 : 167,213.67 = 80,087.16 : x
  2. Step 2: Convert to fraction form
    111,929.88/167,213.67 = 80,087.16/x
  3. Step 3: Cross multiply
    111,929.88x = 167,213.67 × 80,087.16
  4. Step 4: Simplify right side
    111,929.88x = 13,391,667,943.48
  5. Step 5: Solve for x
    x = 13,391,667,943.48/111,929.88
  6. Step 6: Final answer
    x = 119,643.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.