Home / 140,642.40-194,086.74-76,984.23

Finding the Fourth Proportional to 140,642.40, 194,086.74 and 76,984.23

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Solution

The fourth proportional to 140,642.40, 194,086.74 and 76,984.23 is: 106,238.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,642.40 : 194,086.74 = 76,984.23 : x
  2. Step 2: Convert to fraction form
    140,642.40/194,086.74 = 76,984.23/x
  3. Step 3: Cross multiply
    140,642.40x = 194,086.74 × 76,984.23
  4. Step 4: Simplify right side
    140,642.40x = 14,941,618,232.11
  5. Step 5: Solve for x
    x = 14,941,618,232.11/140,642.40
  6. Step 6: Final answer
    x = 106,238.36

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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.