Home / 80,491.17-111,107.63-69,114.96

Finding the Fourth Proportional to 80,491.17, 111,107.63 and 69,114.96

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Solution

The fourth proportional to 80,491.17, 111,107.63 and 69,114.96 is: 95,404.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,491.17 : 111,107.63 = 69,114.96 : x
  2. Step 2: Convert to fraction form
    80,491.17/111,107.63 = 69,114.96/x
  3. Step 3: Cross multiply
    80,491.17x = 111,107.63 × 69,114.96
  4. Step 4: Simplify right side
    80,491.17x = 7,679,199,403.14
  5. Step 5: Solve for x
    x = 7,679,199,403.14/80,491.17
  6. Step 6: Final answer
    x = 95,404.25

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1.5x scale

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.