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Finding the Fourth Proportional to 155,169.11, 214,133.63 and 88,101.11

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Solution

The fourth proportional to 155,169.11, 214,133.63 and 88,101.11 is: 121,579.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,169.11 : 214,133.63 = 88,101.11 : x
  2. Step 2: Convert to fraction form
    155,169.11/214,133.63 = 88,101.11/x
  3. Step 3: Cross multiply
    155,169.11x = 214,133.63 × 88,101.11
  4. Step 4: Simplify right side
    155,169.11x = 18,865,410,050.82
  5. Step 5: Solve for x
    x = 18,865,410,050.82/155,169.11
  6. Step 6: Final answer
    x = 121,579.68

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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.