Home / 146,511.80-219,767.70-87,414.20

Finding the Fourth Proportional to 146,511.80, 219,767.70 and 87,414.20

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Solution

The fourth proportional to 146,511.80, 219,767.70 and 87,414.20 is: 131,121.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,511.80 : 219,767.70 = 87,414.20 : x
  2. Step 2: Convert to fraction form
    146,511.80/219,767.70 = 87,414.20/x
  3. Step 3: Cross multiply
    146,511.80x = 219,767.70 × 87,414.20
  4. Step 4: Simplify right side
    146,511.80x = 19,210,817,681.34
  5. Step 5: Solve for x
    x = 19,210,817,681.34/146,511.80
  6. Step 6: Final answer
    x = 131,121.30

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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.