Home / 167,389.68-231,000.80-90,908.76

Finding the Fourth Proportional to 167,389.68, 231,000.80 and 90,908.76

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Solution

The fourth proportional to 167,389.68, 231,000.80 and 90,908.76 is: 125,455.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,389.68 : 231,000.80 = 90,908.76 : x
  2. Step 2: Convert to fraction form
    167,389.68/231,000.80 = 90,908.76/x
  3. Step 3: Cross multiply
    167,389.68x = 231,000.80 × 90,908.76
  4. Step 4: Simplify right side
    167,389.68x = 20,999,995,832.46
  5. Step 5: Solve for x
    x = 20,999,995,832.46/167,389.68
  6. Step 6: Final answer
    x = 125,455.74

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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.