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Finding the Fourth Proportional to 155,165.67, 214,128.77 and 88,097.67

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Solution

The fourth proportional to 155,165.67, 214,128.77 and 88,097.67 is: 121,574.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,165.67 : 214,128.77 = 88,097.67 : x
  2. Step 2: Convert to fraction form
    155,165.67/214,128.77 = 88,097.67/x
  3. Step 3: Cross multiply
    155,165.67x = 214,128.77 × 88,097.67
  4. Step 4: Simplify right side
    155,165.67x = 18,864,245,716.97
  5. Step 5: Solve for x
    x = 18,864,245,716.97/155,165.67
  6. Step 6: Final answer
    x = 121,574.87

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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.