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Finding the Fourth Proportional to 134,850.80, 202,332.90 and 72,448.40

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Solution

The fourth proportional to 134,850.80, 202,332.90 and 72,448.40 is: 108,703.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,850.80 : 202,332.90 = 72,448.40 : x
  2. Step 2: Convert to fraction form
    134,850.80/202,332.90 = 72,448.40/x
  3. Step 3: Cross multiply
    134,850.80x = 202,332.90 × 72,448.40
  4. Step 4: Simplify right side
    134,850.80x = 14,658,694,872.36
  5. Step 5: Solve for x
    x = 14,658,694,872.36/134,850.80
  6. Step 6: Final answer
    x = 108,703.06

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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.