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Finding the Fourth Proportional to 145,371.59, 218,054.65 and 79,232.61

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Solution

The fourth proportional to 145,371.59, 218,054.65 and 79,232.61 is: 118,847.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,371.59 : 218,054.65 = 79,232.61 : x
  2. Step 2: Convert to fraction form
    145,371.59/218,054.65 = 79,232.61/x
  3. Step 3: Cross multiply
    145,371.59x = 218,054.65 × 79,232.61
  4. Step 4: Simplify right side
    145,371.59x = 17,277,039,042.14
  5. Step 5: Solve for x
    x = 17,277,039,042.14/145,371.59
  6. Step 6: Final answer
    x = 118,847.42

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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.