Home / 109,715.90-164,559.26-43,138.14

Finding the Fourth Proportional to 109,715.90, 164,559.26 and 43,138.14

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Solution

The fourth proportional to 109,715.90, 164,559.26 and 43,138.14 is: 64,701.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,715.90 : 164,559.26 = 43,138.14 : x
  2. Step 2: Convert to fraction form
    109,715.90/164,559.26 = 43,138.14/x
  3. Step 3: Cross multiply
    109,715.90x = 164,559.26 × 43,138.14
  4. Step 4: Simplify right side
    109,715.90x = 7,098,780,396.18
  5. Step 5: Solve for x
    x = 7,098,780,396.18/109,715.90
  6. Step 6: Final answer
    x = 64,701.47

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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.