Home / 99,243.24-149,056.34-85,043.90

Finding the Fourth Proportional to 99,243.24, 149,056.34 and 85,043.90

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Solution

The fourth proportional to 99,243.24, 149,056.34 and 85,043.90 is: 127,729.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,243.24 : 149,056.34 = 85,043.90 : x
  2. Step 2: Convert to fraction form
    99,243.24/149,056.34 = 85,043.90/x
  3. Step 3: Cross multiply
    99,243.24x = 149,056.34 × 85,043.90
  4. Step 4: Simplify right side
    99,243.24x = 12,676,332,420.75
  5. Step 5: Solve for x
    x = 12,676,332,420.75/99,243.24
  6. Step 6: Final answer
    x = 127,729.94

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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.