Home / 113,920.12-157,202.10-68,589.40

Finding the Fourth Proportional to 113,920.12, 157,202.10 and 68,589.40

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Solution

The fourth proportional to 113,920.12, 157,202.10 and 68,589.40 is: 94,648.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,920.12 : 157,202.10 = 68,589.40 : x
  2. Step 2: Convert to fraction form
    113,920.12/157,202.10 = 68,589.40/x
  3. Step 3: Cross multiply
    113,920.12x = 157,202.10 × 68,589.40
  4. Step 4: Simplify right side
    113,920.12x = 10,782,397,717.74
  5. Step 5: Solve for x
    x = 10,782,397,717.74/113,920.12
  6. Step 6: Final answer
    x = 94,648.76

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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.