Home / 140,913.12-194,457.87-77,251.35

Finding the Fourth Proportional to 140,913.12, 194,457.87 and 77,251.35

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Solution

The fourth proportional to 140,913.12, 194,457.87 and 77,251.35 is: 106,605.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,913.12 : 194,457.87 = 77,251.35 : x
  2. Step 2: Convert to fraction form
    140,913.12/194,457.87 = 77,251.35/x
  3. Step 3: Cross multiply
    140,913.12x = 194,457.87 × 77,251.35
  4. Step 4: Simplify right side
    140,913.12x = 15,022,132,975.62
  5. Step 5: Solve for x
    x = 15,022,132,975.62/140,913.12
  6. Step 6: Final answer
    x = 106,605.64

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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.