Home / 140,700.39-194,165.07-76,168.50

Finding the Fourth Proportional to 140,700.39, 194,165.07 and 76,168.50

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Solution

The fourth proportional to 140,700.39, 194,165.07 and 76,168.50 is: 105,111.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,700.39 : 194,165.07 = 76,168.50 : x
  2. Step 2: Convert to fraction form
    140,700.39/194,165.07 = 76,168.50/x
  3. Step 3: Cross multiply
    140,700.39x = 194,165.07 × 76,168.50
  4. Step 4: Simplify right side
    140,700.39x = 14,789,262,134.30
  5. Step 5: Solve for x
    x = 14,789,262,134.30/140,700.39
  6. Step 6: Final answer
    x = 105,111.74

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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.