Home / 105,340.25-158,026.10-38,775.31

Finding the Fourth Proportional to 105,340.25, 158,026.10 and 38,775.31

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Solution

The fourth proportional to 105,340.25, 158,026.10 and 38,775.31 is: 58,168.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,340.25 : 158,026.10 = 38,775.31 : x
  2. Step 2: Convert to fraction form
    105,340.25/158,026.10 = 38,775.31/x
  3. Step 3: Cross multiply
    105,340.25x = 158,026.10 × 38,775.31
  4. Step 4: Simplify right side
    105,340.25x = 6,127,511,015.59
  5. Step 5: Solve for x
    x = 6,127,511,015.59/105,340.25
  6. Step 6: Final answer
    x = 58,168.76

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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.