Home / 106,463.76-146,928.60-58,721.28

Finding the Fourth Proportional to 106,463.76, 146,928.60 and 58,721.28

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Solution

The fourth proportional to 106,463.76, 146,928.60 and 58,721.28 is: 81,040.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,463.76 : 146,928.60 = 58,721.28 : x
  2. Step 2: Convert to fraction form
    106,463.76/146,928.60 = 58,721.28/x
  3. Step 3: Cross multiply
    106,463.76x = 146,928.60 × 58,721.28
  4. Step 4: Simplify right side
    106,463.76x = 8,627,835,460.61
  5. Step 5: Solve for x
    x = 8,627,835,460.61/106,463.76
  6. Step 6: Final answer
    x = 81,040.12

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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.