Home / 100,436.67-150,597.91-77,632.46

Finding the Fourth Proportional to 100,436.67, 150,597.91 and 77,632.46

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Solution

The fourth proportional to 100,436.67, 150,597.91 and 77,632.46 is: 116,404.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,436.67 : 150,597.91 = 77,632.46 : x
  2. Step 2: Convert to fraction form
    100,436.67/150,597.91 = 77,632.46/x
  3. Step 3: Cross multiply
    100,436.67x = 150,597.91 × 77,632.46
  4. Step 4: Simplify right side
    100,436.67x = 11,691,286,224.16
  5. Step 5: Solve for x
    x = 11,691,286,224.16/100,436.67
  6. Step 6: Final answer
    x = 116,404.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.