Home / 119,971.52-165,553.44-72,240.32

Finding the Fourth Proportional to 119,971.52, 165,553.44 and 72,240.32

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Solution

The fourth proportional to 119,971.52, 165,553.44 and 72,240.32 is: 99,687.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,971.52 : 165,553.44 = 72,240.32 : x
  2. Step 2: Convert to fraction form
    119,971.52/165,553.44 = 72,240.32/x
  3. Step 3: Cross multiply
    119,971.52x = 165,553.44 × 72,240.32
  4. Step 4: Simplify right side
    119,971.52x = 11,959,633,482.70
  5. Step 5: Solve for x
    x = 11,959,633,482.70/119,971.52
  6. Step 6: Final answer
    x = 99,687.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.