Home / 167,400.66-231,064.08-99,428.70

Finding the Fourth Proportional to 167,400.66, 231,064.08 and 99,428.70

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Solution

The fourth proportional to 167,400.66, 231,064.08 and 99,428.70 is: 137,242.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,400.66 : 231,064.08 = 99,428.70 : x
  2. Step 2: Convert to fraction form
    167,400.66/231,064.08 = 99,428.70/x
  3. Step 3: Cross multiply
    167,400.66x = 231,064.08 × 99,428.70
  4. Step 4: Simplify right side
    167,400.66x = 22,974,401,091.10
  5. Step 5: Solve for x
    x = 22,974,401,091.10/167,400.66
  6. Step 6: Final answer
    x = 137,242.00

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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.