Home / 107,299.60-148,039.12-61,971.56

Finding the Fourth Proportional to 107,299.60, 148,039.12 and 61,971.56

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Solution

The fourth proportional to 107,299.60, 148,039.12 and 61,971.56 is: 85,500.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,299.60 : 148,039.12 = 61,971.56 : x
  2. Step 2: Convert to fraction form
    107,299.60/148,039.12 = 61,971.56/x
  3. Step 3: Cross multiply
    107,299.60x = 148,039.12 × 61,971.56
  4. Step 4: Simplify right side
    107,299.60x = 9,174,215,207.43
  5. Step 5: Solve for x
    x = 9,174,215,207.43/107,299.60
  6. Step 6: Final answer
    x = 85,500.93

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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.