Home / 140,651.10-194,098.56-76,990.26

Finding the Fourth Proportional to 140,651.10, 194,098.56 and 76,990.26

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Solution

The fourth proportional to 140,651.10, 194,098.56 and 76,990.26 is: 106,246.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,651.10 : 194,098.56 = 76,990.26 : x
  2. Step 2: Convert to fraction form
    140,651.10/194,098.56 = 76,990.26/x
  3. Step 3: Cross multiply
    140,651.10x = 194,098.56 × 76,990.26
  4. Step 4: Simplify right side
    140,651.10x = 14,943,698,600.03
  5. Step 5: Solve for x
    x = 14,943,698,600.03/140,651.10
  6. Step 6: Final answer
    x = 106,246.58

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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.