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Finding the Fourth Proportional to 134,152.80, 200,998.80 and 70,879.20

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Solution

The fourth proportional to 134,152.80, 200,998.80 and 70,879.20 is: 106,197.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,152.80 : 200,998.80 = 70,879.20 : x
  2. Step 2: Convert to fraction form
    134,152.80/200,998.80 = 70,879.20/x
  3. Step 3: Cross multiply
    134,152.80x = 200,998.80 × 70,879.20
  4. Step 4: Simplify right side
    134,152.80x = 14,246,634,144.96
  5. Step 5: Solve for x
    x = 14,246,634,144.96/134,152.80
  6. Step 6: Final answer
    x = 106,197.07

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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.