Home / 165,058.56-247,691.52-80,870.40

Finding the Fourth Proportional to 165,058.56, 247,691.52 and 80,870.40

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Solution

The fourth proportional to 165,058.56, 247,691.52 and 80,870.40 is: 121,356.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,058.56 : 247,691.52 = 80,870.40 : x
  2. Step 2: Convert to fraction form
    165,058.56/247,691.52 = 80,870.40/x
  3. Step 3: Cross multiply
    165,058.56x = 247,691.52 × 80,870.40
  4. Step 4: Simplify right side
    165,058.56x = 20,030,912,299.01
  5. Step 5: Solve for x
    x = 20,030,912,299.01/165,058.56
  6. Step 6: Final answer
    x = 121,356.40

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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.