Home / 105,815.88-146,015.28-63,373.32

Finding the Fourth Proportional to 105,815.88, 146,015.28 and 63,373.32

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Solution

The fourth proportional to 105,815.88, 146,015.28 and 63,373.32 is: 87,448.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,815.88 : 146,015.28 = 63,373.32 : x
  2. Step 2: Convert to fraction form
    105,815.88/146,015.28 = 63,373.32/x
  3. Step 3: Cross multiply
    105,815.88x = 146,015.28 × 63,373.32
  4. Step 4: Simplify right side
    105,815.88x = 9,253,473,064.33
  5. Step 5: Solve for x
    x = 9,253,473,064.33/105,815.88
  6. Step 6: Final answer
    x = 87,448.81

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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.