Home / 108,351.42-149,562.63-74,472.30

Finding the Fourth Proportional to 108,351.42, 149,562.63 and 74,472.30

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Solution

The fourth proportional to 108,351.42, 149,562.63 and 74,472.30 is: 102,797.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,351.42 : 149,562.63 = 74,472.30 : x
  2. Step 2: Convert to fraction form
    108,351.42/149,562.63 = 74,472.30/x
  3. Step 3: Cross multiply
    108,351.42x = 149,562.63 × 74,472.30
  4. Step 4: Simplify right side
    108,351.42x = 11,138,273,050.15
  5. Step 5: Solve for x
    x = 11,138,273,050.15/108,351.42
  6. Step 6: Final answer
    x = 102,797.67

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1.5x scale

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.