Home / 153,110.57-229,712.57-78,283.27

Finding the Fourth Proportional to 153,110.57, 229,712.57 and 78,283.27

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Solution

The fourth proportional to 153,110.57, 229,712.57 and 78,283.27 is: 117,448.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,110.57 : 229,712.57 = 78,283.27 : x
  2. Step 2: Convert to fraction form
    153,110.57/229,712.57 = 78,283.27/x
  3. Step 3: Cross multiply
    153,110.57x = 229,712.57 × 78,283.27
  4. Step 4: Simplify right side
    153,110.57x = 17,982,650,761.13
  5. Step 5: Solve for x
    x = 17,982,650,761.13/153,110.57
  6. Step 6: Final answer
    x = 117,448.79

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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.