Home / 217,670.05-300,392.18-120,875.52

Finding the Fourth Proportional to 217,670.05, 300,392.18 and 120,875.52

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Solution

The fourth proportional to 217,670.05, 300,392.18 and 120,875.52 is: 166,812.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,670.05 : 300,392.18 = 120,875.52 : x
  2. Step 2: Convert to fraction form
    217,670.05/300,392.18 = 120,875.52/x
  3. Step 3: Cross multiply
    217,670.05x = 300,392.18 × 120,875.52
  4. Step 4: Simplify right side
    217,670.05x = 36,310,060,961.43
  5. Step 5: Solve for x
    x = 36,310,060,961.43/217,670.05
  6. Step 6: Final answer
    x = 166,812.39

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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.