Home / 107,311.32-148,096.53-61,991.21

Finding the Fourth Proportional to 107,311.32, 148,096.53 and 61,991.21

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Solution

The fourth proportional to 107,311.32, 148,096.53 and 61,991.21 is: 85,551.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,311.32 : 148,096.53 = 61,991.21 : x
  2. Step 2: Convert to fraction form
    107,311.32/148,096.53 = 61,991.21/x
  3. Step 3: Cross multiply
    107,311.32x = 148,096.53 × 61,991.21
  4. Step 4: Simplify right side
    107,311.32x = 9,180,683,091.50
  5. Step 5: Solve for x
    x = 9,180,683,091.50/107,311.32
  6. Step 6: Final answer
    x = 85,551.86

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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.