Home / 108,541.14-149,756.67-66,069.42

Finding the Fourth Proportional to 108,541.14, 149,756.67 and 66,069.42

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Solution

The fourth proportional to 108,541.14, 149,756.67 and 66,069.42 is: 91,157.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,541.14 : 149,756.67 = 66,069.42 : x
  2. Step 2: Convert to fraction form
    108,541.14/149,756.67 = 66,069.42/x
  3. Step 3: Cross multiply
    108,541.14x = 149,756.67 × 66,069.42
  4. Step 4: Simplify right side
    108,541.14x = 9,894,336,328.03
  5. Step 5: Solve for x
    x = 9,894,336,328.03/108,541.14
  6. Step 6: Final answer
    x = 91,157.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.