Home / 140,742.40-194,225.22-77,086.12

Finding the Fourth Proportional to 140,742.40, 194,225.22 and 77,086.12

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Solution

The fourth proportional to 140,742.40, 194,225.22 and 77,086.12 is: 106,379.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,742.40 : 194,225.22 = 77,086.12 : x
  2. Step 2: Convert to fraction form
    140,742.40/194,225.22 = 77,086.12/x
  3. Step 3: Cross multiply
    140,742.40x = 194,225.22 × 77,086.12
  4. Step 4: Simplify right side
    140,742.40x = 14,972,068,615.95
  5. Step 5: Solve for x
    x = 14,972,068,615.95/140,742.40
  6. Step 6: Final answer
    x = 106,379.23

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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.