Home / 140,315.70-193,691.07-86,622.42

Finding the Fourth Proportional to 140,315.70, 193,691.07 and 86,622.42

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Solution

The fourth proportional to 140,315.70, 193,691.07 and 86,622.42 is: 119,573.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,315.70 : 193,691.07 = 86,622.42 : x
  2. Step 2: Convert to fraction form
    140,315.70/193,691.07 = 86,622.42/x
  3. Step 3: Cross multiply
    140,315.70x = 193,691.07 × 86,622.42
  4. Step 4: Simplify right side
    140,315.70x = 16,777,989,215.79
  5. Step 5: Solve for x
    x = 16,777,989,215.79/140,315.70
  6. Step 6: Final answer
    x = 119,573.14

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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.