Home / 165,069.56-247,604.40-90,148.72

Finding the Fourth Proportional to 165,069.56, 247,604.40 and 90,148.72

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Solution

The fourth proportional to 165,069.56, 247,604.40 and 90,148.72 is: 135,223.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,069.56 : 247,604.40 = 90,148.72 : x
  2. Step 2: Convert to fraction form
    165,069.56/247,604.40 = 90,148.72/x
  3. Step 3: Cross multiply
    165,069.56x = 247,604.40 × 90,148.72
  4. Step 4: Simplify right side
    165,069.56x = 22,321,219,726.37
  5. Step 5: Solve for x
    x = 22,321,219,726.37/165,069.56
  6. Step 6: Final answer
    x = 135,223.11

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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.