Home / 105,920.17-146,105.64-62,871.28

Finding the Fourth Proportional to 105,920.17, 146,105.64 and 62,871.28

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Solution

The fourth proportional to 105,920.17, 146,105.64 and 62,871.28 is: 86,724.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,920.17 : 146,105.64 = 62,871.28 : x
  2. Step 2: Convert to fraction form
    105,920.17/146,105.64 = 62,871.28/x
  3. Step 3: Cross multiply
    105,920.17x = 146,105.64 × 62,871.28
  4. Step 4: Simplify right side
    105,920.17x = 9,185,848,236.76
  5. Step 5: Solve for x
    x = 9,185,848,236.76/105,920.17
  6. Step 6: Final answer
    x = 86,724.26

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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.