Home / 167,449.23-231,079-90,967.71

Finding the Fourth Proportional to 167,449.23, 231,079 and 90,967.71

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Solution

The fourth proportional to 167,449.23, 231,079 and 90,967.71 is: 125,534.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,449.23 : 231,079 = 90,967.71 : x
  2. Step 2: Convert to fraction form
    167,449.23/231,079 = 90,967.71/x
  3. Step 3: Cross multiply
    167,449.23x = 231,079 × 90,967.71
  4. Step 4: Simplify right side
    167,449.23x = 21,020,727,459.09
  5. Step 5: Solve for x
    x = 21,020,727,459.09/167,449.23
  6. Step 6: Final answer
    x = 125,534.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.