Home / 212,501.27-293,185.94-120,605.78

Finding the Fourth Proportional to 212,501.27, 293,185.94 and 120,605.78

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Solution

The fourth proportional to 212,501.27, 293,185.94 and 120,605.78 is: 166,398.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,501.27 : 293,185.94 = 120,605.78 : x
  2. Step 2: Convert to fraction form
    212,501.27/293,185.94 = 120,605.78/x
  3. Step 3: Cross multiply
    212,501.27x = 293,185.94 × 120,605.78
  4. Step 4: Simplify right side
    212,501.27x = 35,359,916,909.77
  5. Step 5: Solve for x
    x = 35,359,916,909.77/212,501.27
  6. Step 6: Final answer
    x = 166,398.62

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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.