Home / 109,282.20-163,923.30-99,605.40

Finding the Fourth Proportional to 109,282.20, 163,923.30 and 99,605.40

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Solution

The fourth proportional to 109,282.20, 163,923.30 and 99,605.40 is: 149,408.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,282.20 : 163,923.30 = 99,605.40 : x
  2. Step 2: Convert to fraction form
    109,282.20/163,923.30 = 99,605.40/x
  3. Step 3: Cross multiply
    109,282.20x = 163,923.30 × 99,605.40
  4. Step 4: Simplify right side
    109,282.20x = 16,327,645,865.82
  5. Step 5: Solve for x
    x = 16,327,645,865.82/109,282.20
  6. Step 6: Final answer
    x = 149,408.10

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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.