Home / 112,974.40-169,267.20-73,511.20

Finding the Fourth Proportional to 112,974.40, 169,267.20 and 73,511.20

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Solution

The fourth proportional to 112,974.40, 169,267.20 and 73,511.20 is: 110,140.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,974.40 : 169,267.20 = 73,511.20 : x
  2. Step 2: Convert to fraction form
    112,974.40/169,267.20 = 73,511.20/x
  3. Step 3: Cross multiply
    112,974.40x = 169,267.20 × 73,511.20
  4. Step 4: Simplify right side
    112,974.40x = 12,443,034,992.64
  5. Step 5: Solve for x
    x = 12,443,034,992.64/112,974.40
  6. Step 6: Final answer
    x = 110,140.31

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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.