Home / 165,671.20-248,506.80-81,444.37

Finding the Fourth Proportional to 165,671.20, 248,506.80 and 81,444.37

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Solution

The fourth proportional to 165,671.20, 248,506.80 and 81,444.37 is: 122,166.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,671.20 : 248,506.80 = 81,444.37 : x
  2. Step 2: Convert to fraction form
    165,671.20/248,506.80 = 81,444.37/x
  3. Step 3: Cross multiply
    165,671.20x = 248,506.80 × 81,444.37
  4. Step 4: Simplify right side
    165,671.20x = 20,239,478,524.18
  5. Step 5: Solve for x
    x = 20,239,478,524.18/165,671.20
  6. Step 6: Final answer
    x = 122,166.55

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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.