Home / 97,115.40-145,693.89-55,015.38

Finding the Fourth Proportional to 97,115.40, 145,693.89 and 55,015.38

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Solution

The fourth proportional to 97,115.40, 145,693.89 and 55,015.38 is: 82,534.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,115.40 : 145,693.89 = 55,015.38 : x
  2. Step 2: Convert to fraction form
    97,115.40/145,693.89 = 55,015.38/x
  3. Step 3: Cross multiply
    97,115.40x = 145,693.89 × 55,015.38
  4. Step 4: Simplify right side
    97,115.40x = 8,015,404,722.03
  5. Step 5: Solve for x
    x = 8,015,404,722.03/97,115.40
  6. Step 6: Final answer
    x = 82,534.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.