Home / 147,742.56-221,711.04-54,249.12

Finding the Fourth Proportional to 147,742.56, 221,711.04 and 54,249.12

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Solution

The fourth proportional to 147,742.56, 221,711.04 and 54,249.12 is: 81,409.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,742.56 : 221,711.04 = 54,249.12 : x
  2. Step 2: Convert to fraction form
    147,742.56/221,711.04 = 54,249.12/x
  3. Step 3: Cross multiply
    147,742.56x = 221,711.04 × 54,249.12
  4. Step 4: Simplify right side
    147,742.56x = 12,027,628,814.28
  5. Step 5: Solve for x
    x = 12,027,628,814.28/147,742.56
  6. Step 6: Final answer
    x = 81,409.37

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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.