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Finding the Fourth Proportional to 146,752.40, 220,128.60 and 123,424.40

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Solution

The fourth proportional to 146,752.40, 220,128.60 and 123,424.40 is: 185,136.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,752.40 : 220,128.60 = 123,424.40 : x
  2. Step 2: Convert to fraction form
    146,752.40/220,128.60 = 123,424.40/x
  3. Step 3: Cross multiply
    146,752.40x = 220,128.60 × 123,424.40
  4. Step 4: Simplify right side
    146,752.40x = 27,169,240,377.84
  5. Step 5: Solve for x
    x = 27,169,240,377.84/146,752.40
  6. Step 6: Final answer
    x = 185,136.60

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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.