Home / 140,904.11-194,443.65-80,473.50

Finding the Fourth Proportional to 140,904.11, 194,443.65 and 80,473.50

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Solution

The fourth proportional to 140,904.11, 194,443.65 and 80,473.50 is: 111,051.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,904.11 : 194,443.65 = 80,473.50 : x
  2. Step 2: Convert to fraction form
    140,904.11/194,443.65 = 80,473.50/x
  3. Step 3: Cross multiply
    140,904.11x = 194,443.65 × 80,473.50
  4. Step 4: Simplify right side
    140,904.11x = 15,647,561,068.28
  5. Step 5: Solve for x
    x = 15,647,561,068.28/140,904.11
  6. Step 6: Final answer
    x = 111,051.13

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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.