Home / 105,775.10-158,660.04-25,813.64

Finding the Fourth Proportional to 105,775.10, 158,660.04 and 25,813.64

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Solution

The fourth proportional to 105,775.10, 158,660.04 and 25,813.64 is: 38,719.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,775.10 : 158,660.04 = 25,813.64 : x
  2. Step 2: Convert to fraction form
    105,775.10/158,660.04 = 25,813.64/x
  3. Step 3: Cross multiply
    105,775.10x = 158,660.04 × 25,813.64
  4. Step 4: Simplify right side
    105,775.10x = 4,095,593,154.95
  5. Step 5: Solve for x
    x = 4,095,593,154.95/105,775.10
  6. Step 6: Final answer
    x = 38,719.82

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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.