Home / 109,209.20-163,886.70-61,824.20

Finding the Fourth Proportional to 109,209.20, 163,886.70 and 61,824.20

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Solution

The fourth proportional to 109,209.20, 163,886.70 and 61,824.20 is: 92,777.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,209.20 : 163,886.70 = 61,824.20 : x
  2. Step 2: Convert to fraction form
    109,209.20/163,886.70 = 61,824.20/x
  3. Step 3: Cross multiply
    109,209.20x = 163,886.70 × 61,824.20
  4. Step 4: Simplify right side
    109,209.20x = 10,132,164,118.14
  5. Step 5: Solve for x
    x = 10,132,164,118.14/109,209.20
  6. Step 6: Final answer
    x = 92,777.57

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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.