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Finding the Fourth Proportional to 146,248.48, 201,822 and 79,180

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Solution

The fourth proportional to 146,248.48, 201,822 and 79,180 is: 109,267.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,248.48 : 201,822 = 79,180 : x
  2. Step 2: Convert to fraction form
    146,248.48/201,822 = 79,180/x
  3. Step 3: Cross multiply
    146,248.48x = 201,822 × 79,180
  4. Step 4: Simplify right side
    146,248.48x = 15,980,265,960
  5. Step 5: Solve for x
    x = 15,980,265,960/146,248.48
  6. Step 6: Final answer
    x = 109,267.91

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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.