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Finding the Fourth Proportional to 140,985.34, 194,541.72 and 80,559.91

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Solution

The fourth proportional to 140,985.34, 194,541.72 and 80,559.91 is: 111,162.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,985.34 : 194,541.72 = 80,559.91 : x
  2. Step 2: Convert to fraction form
    140,985.34/194,541.72 = 80,559.91/x
  3. Step 3: Cross multiply
    140,985.34x = 194,541.72 × 80,559.91
  4. Step 4: Simplify right side
    140,985.34x = 15,672,264,486.08
  5. Step 5: Solve for x
    x = 15,672,264,486.08/140,985.34
  6. Step 6: Final answer
    x = 111,162.37

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