Home / 119,001.24-164,229.36-78,644.28

Finding the Fourth Proportional to 119,001.24, 164,229.36 and 78,644.28

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Solution

The fourth proportional to 119,001.24, 164,229.36 and 78,644.28 is: 108,534.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,001.24 : 164,229.36 = 78,644.28 : x
  2. Step 2: Convert to fraction form
    119,001.24/164,229.36 = 78,644.28/x
  3. Step 3: Cross multiply
    119,001.24x = 164,229.36 × 78,644.28
  4. Step 4: Simplify right side
    119,001.24x = 12,915,699,772.06
  5. Step 5: Solve for x
    x = 12,915,699,772.06/119,001.24
  6. Step 6: Final answer
    x = 108,534.16

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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.