Home / 212,356.64-293,080.20-137,123.84

Finding the Fourth Proportional to 212,356.64, 293,080.20 and 137,123.84

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Solution

The fourth proportional to 212,356.64, 293,080.20 and 137,123.84 is: 189,249.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,356.64 : 293,080.20 = 137,123.84 : x
  2. Step 2: Convert to fraction form
    212,356.64/293,080.20 = 137,123.84/x
  3. Step 3: Cross multiply
    212,356.64x = 293,080.20 × 137,123.84
  4. Step 4: Simplify right side
    212,356.64x = 40,188,282,451.97
  5. Step 5: Solve for x
    x = 40,188,282,451.97/212,356.64
  6. Step 6: Final answer
    x = 189,249.00

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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.