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Finding the Fourth Proportional to 155,423.11, 214,464.72 and 98,040.77

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Solution

The fourth proportional to 155,423.11, 214,464.72 and 98,040.77 is: 135,284.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,423.11 : 214,464.72 = 98,040.77 : x
  2. Step 2: Convert to fraction form
    155,423.11/214,464.72 = 98,040.77/x
  3. Step 3: Cross multiply
    155,423.11x = 214,464.72 × 98,040.77
  4. Step 4: Simplify right side
    155,423.11x = 21,026,286,286.63
  5. Step 5: Solve for x
    x = 21,026,286,286.63/155,423.11
  6. Step 6: Final answer
    x = 135,284.17

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.