Home / 226,897.19-340,386.32-77,129.61

Finding the Fourth Proportional to 226,897.19, 340,386.32 and 77,129.61

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Solution

The fourth proportional to 226,897.19, 340,386.32 and 77,129.61 is: 115,708.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,897.19 : 340,386.32 = 77,129.61 : x
  2. Step 2: Convert to fraction form
    226,897.19/340,386.32 = 77,129.61/x
  3. Step 3: Cross multiply
    226,897.19x = 340,386.32 × 77,129.61
  4. Step 4: Simplify right side
    226,897.19x = 26,253,864,110.94
  5. Step 5: Solve for x
    x = 26,253,864,110.94/226,897.19
  6. Step 6: Final answer
    x = 115,708.19

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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.