Home / 167,808.12-231,570.81-91,328.70

Finding the Fourth Proportional to 167,808.12, 231,570.81 and 91,328.70

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Solution

The fourth proportional to 167,808.12, 231,570.81 and 91,328.70 is: 126,031.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,808.12 : 231,570.81 = 91,328.70 : x
  2. Step 2: Convert to fraction form
    167,808.12/231,570.81 = 91,328.70/x
  3. Step 3: Cross multiply
    167,808.12x = 231,570.81 × 91,328.70
  4. Step 4: Simplify right side
    167,808.12x = 21,149,061,035.25
  5. Step 5: Solve for x
    x = 21,149,061,035.25/167,808.12
  6. Step 6: Final answer
    x = 126,031.21

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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.