Home / 109,159.55-163,729.94-66,453.89

Finding the Fourth Proportional to 109,159.55, 163,729.94 and 66,453.89

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Solution

The fourth proportional to 109,159.55, 163,729.94 and 66,453.89 is: 99,675.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,159.55 : 163,729.94 = 66,453.89 : x
  2. Step 2: Convert to fraction form
    109,159.55/163,729.94 = 66,453.89/x
  3. Step 3: Cross multiply
    109,159.55x = 163,729.94 × 66,453.89
  4. Step 4: Simplify right side
    109,159.55x = 10,880,491,422.47
  5. Step 5: Solve for x
    x = 10,880,491,422.47/109,159.55
  6. Step 6: Final answer
    x = 99,675.12

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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.