Home / 209,947.52-315,103.26-110,178.20

Finding the Fourth Proportional to 209,947.52, 315,103.26 and 110,178.20

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Solution

The fourth proportional to 209,947.52, 315,103.26 and 110,178.20 is: 165,362.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,947.52 : 315,103.26 = 110,178.20 : x
  2. Step 2: Convert to fraction form
    209,947.52/315,103.26 = 110,178.20/x
  3. Step 3: Cross multiply
    209,947.52x = 315,103.26 × 110,178.20
  4. Step 4: Simplify right side
    209,947.52x = 34,717,510,301.16
  5. Step 5: Solve for x
    x = 34,717,510,301.16/209,947.52
  6. Step 6: Final answer
    x = 165,362.80

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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.