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Finding the Fourth Proportional to 134,744.70, 202,117.05 and 99,315.30

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Solution

The fourth proportional to 134,744.70, 202,117.05 and 99,315.30 is: 148,972.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,744.70 : 202,117.05 = 99,315.30 : x
  2. Step 2: Convert to fraction form
    134,744.70/202,117.05 = 99,315.30/x
  3. Step 3: Cross multiply
    134,744.70x = 202,117.05 × 99,315.30
  4. Step 4: Simplify right side
    134,744.70x = 20,073,315,455.87
  5. Step 5: Solve for x
    x = 20,073,315,455.87/134,744.70
  6. Step 6: Final answer
    x = 148,972.95

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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.