Home / 105,777.10-158,663.04-25,815.64

Finding the Fourth Proportional to 105,777.10, 158,663.04 and 25,815.64

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Solution

The fourth proportional to 105,777.10, 158,663.04 and 25,815.64 is: 38,722.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,777.10 : 158,663.04 = 25,815.64 : x
  2. Step 2: Convert to fraction form
    105,777.10/158,663.04 = 25,815.64/x
  3. Step 3: Cross multiply
    105,777.10x = 158,663.04 × 25,815.64
  4. Step 4: Simplify right side
    105,777.10x = 4,095,987,921.95
  5. Step 5: Solve for x
    x = 4,095,987,921.95/105,777.10
  6. Step 6: Final answer
    x = 38,722.82

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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.