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Finding the Fourth Proportional to 167,373.78, 230,979.78 and 90,895.74

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Solution

The fourth proportional to 167,373.78, 230,979.78 and 90,895.74 is: 125,438.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,373.78 : 230,979.78 = 90,895.74 : x
  2. Step 2: Convert to fraction form
    167,373.78/230,979.78 = 90,895.74/x
  3. Step 3: Cross multiply
    167,373.78x = 230,979.78 × 90,895.74
  4. Step 4: Simplify right side
    167,373.78x = 20,995,078,028.14
  5. Step 5: Solve for x
    x = 20,995,078,028.14/167,373.78
  6. Step 6: Final answer
    x = 125,438.27

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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.