Home / 109,143.20-163,628.40-59,895.20

Finding the Fourth Proportional to 109,143.20, 163,628.40 and 59,895.20

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Solution

The fourth proportional to 109,143.20, 163,628.40 and 59,895.20 is: 89,795.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,143.20 : 163,628.40 = 59,895.20 : x
  2. Step 2: Convert to fraction form
    109,143.20/163,628.40 = 59,895.20/x
  3. Step 3: Cross multiply
    109,143.20x = 163,628.40 × 59,895.20
  4. Step 4: Simplify right side
    109,143.20x = 9,800,555,743.68
  5. Step 5: Solve for x
    x = 9,800,555,743.68/109,143.20
  6. Step 6: Final answer
    x = 89,795.39

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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.