Home / 104,721.39-155,897.58-104,098.61

Finding the Fourth Proportional to 104,721.39, 155,897.58 and 104,098.61

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Solution

The fourth proportional to 104,721.39, 155,897.58 and 104,098.61 is: 154,970.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,721.39 : 155,897.58 = 104,098.61 : x
  2. Step 2: Convert to fraction form
    104,721.39/155,897.58 = 104,098.61/x
  3. Step 3: Cross multiply
    104,721.39x = 155,897.58 × 104,098.61
  4. Step 4: Simplify right side
    104,721.39x = 16,228,720,600.88
  5. Step 5: Solve for x
    x = 16,228,720,600.88/104,721.39
  6. Step 6: Final answer
    x = 154,970.45

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.