Home / 113,974.80-157,306.96-75,144.45

Finding the Fourth Proportional to 113,974.80, 157,306.96 and 75,144.45

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Solution

The fourth proportional to 113,974.80, 157,306.96 and 75,144.45 is: 103,713.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,974.80 : 157,306.96 = 75,144.45 : x
  2. Step 2: Convert to fraction form
    113,974.80/157,306.96 = 75,144.45/x
  3. Step 3: Cross multiply
    113,974.80x = 157,306.96 × 75,144.45
  4. Step 4: Simplify right side
    113,974.80x = 11,820,744,568.14
  5. Step 5: Solve for x
    x = 11,820,744,568.14/113,974.80
  6. Step 6: Final answer
    x = 103,713.67

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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.