Home / 112,371.30-168,666.15-87,680.10

Finding the Fourth Proportional to 112,371.30, 168,666.15 and 87,680.10

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Solution

The fourth proportional to 112,371.30, 168,666.15 and 87,680.10 is: 131,605.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,371.30 : 168,666.15 = 87,680.10 : x
  2. Step 2: Convert to fraction form
    112,371.30/168,666.15 = 87,680.10/x
  3. Step 3: Cross multiply
    112,371.30x = 168,666.15 × 87,680.10
  4. Step 4: Simplify right side
    112,371.30x = 14,788,664,898.62
  5. Step 5: Solve for x
    x = 14,788,664,898.62/112,371.30
  6. Step 6: Final answer
    x = 131,605.36

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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.