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Finding the Fourth Proportional to 158,645.75, 238,041.26 and 68,715.96

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Solution

The fourth proportional to 158,645.75, 238,041.26 and 68,715.96 is: 103,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,645.75 : 238,041.26 = 68,715.96 : x
  2. Step 2: Convert to fraction form
    158,645.75/238,041.26 = 68,715.96/x
  3. Step 3: Cross multiply
    158,645.75x = 238,041.26 × 68,715.96
  4. Step 4: Simplify right side
    158,645.75x = 16,357,233,356.93
  5. Step 5: Solve for x
    x = 16,357,233,356.93/158,645.75
  6. Step 6: Final answer
    x = 103,105.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.