Home / 151,813.46-209,486.66-88,138.82

Finding the Fourth Proportional to 151,813.46, 209,486.66 and 88,138.82

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Solution

The fourth proportional to 151,813.46, 209,486.66 and 88,138.82 is: 121,622.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,813.46 : 209,486.66 = 88,138.82 : x
  2. Step 2: Convert to fraction form
    151,813.46/209,486.66 = 88,138.82/x
  3. Step 3: Cross multiply
    151,813.46x = 209,486.66 × 88,138.82
  4. Step 4: Simplify right side
    151,813.46x = 18,463,907,018.14
  5. Step 5: Solve for x
    x = 18,463,907,018.14/151,813.46
  6. Step 6: Final answer
    x = 121,622.33

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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.