Home / 212,974.70-293,999.55-137,559.98

Finding the Fourth Proportional to 212,974.70, 293,999.55 and 137,559.98

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Solution

The fourth proportional to 212,974.70, 293,999.55 and 137,559.98 is: 189,893.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,974.70 : 293,999.55 = 137,559.98 : x
  2. Step 2: Convert to fraction form
    212,974.70/293,999.55 = 137,559.98/x
  3. Step 3: Cross multiply
    212,974.70x = 293,999.55 × 137,559.98
  4. Step 4: Simplify right side
    212,974.70x = 40,442,572,218.01
  5. Step 5: Solve for x
    x = 40,442,572,218.01/212,974.70
  6. Step 6: Final answer
    x = 189,893.79

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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.