Home / 140,742.10-194,216.90-77,067.60

Finding the Fourth Proportional to 140,742.10, 194,216.90 and 77,067.60

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Solution

The fourth proportional to 140,742.10, 194,216.90 and 77,067.60 is: 106,349.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,742.10 : 194,216.90 = 77,067.60 : x
  2. Step 2: Convert to fraction form
    140,742.10/194,216.90 = 77,067.60/x
  3. Step 3: Cross multiply
    140,742.10x = 194,216.90 × 77,067.60
  4. Step 4: Simplify right side
    140,742.10x = 14,967,830,362.44
  5. Step 5: Solve for x
    x = 14,967,830,362.44/140,742.10
  6. Step 6: Final answer
    x = 106,349.35

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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.