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Finding the Fourth Proportional to 146,598.60, 219,768.30 and 87,371.40

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Solution

The fourth proportional to 146,598.60, 219,768.30 and 87,371.40 is: 130,979.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,598.60 : 219,768.30 = 87,371.40 : x
  2. Step 2: Convert to fraction form
    146,598.60/219,768.30 = 87,371.40/x
  3. Step 3: Cross multiply
    146,598.60x = 219,768.30 × 87,371.40
  4. Step 4: Simplify right side
    146,598.60x = 19,201,464,046.62
  5. Step 5: Solve for x
    x = 19,201,464,046.62/146,598.60
  6. Step 6: Final answer
    x = 130,979.86

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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.