Home / 151,785.21-209,447.69-88,110.57

Finding the Fourth Proportional to 151,785.21, 209,447.69 and 88,110.57

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Solution

The fourth proportional to 151,785.21, 209,447.69 and 88,110.57 is: 121,583.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,785.21 : 209,447.69 = 88,110.57 : x
  2. Step 2: Convert to fraction form
    151,785.21/209,447.69 = 88,110.57/x
  3. Step 3: Cross multiply
    151,785.21x = 209,447.69 × 88,110.57
  4. Step 4: Simplify right side
    151,785.21x = 18,454,554,910.53
  5. Step 5: Solve for x
    x = 18,454,554,910.53/151,785.21
  6. Step 6: Final answer
    x = 121,583.35

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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.