Home / 147,729.08-221,662.82-72,808.39

Finding the Fourth Proportional to 147,729.08, 221,662.82 and 72,808.39

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Solution

The fourth proportional to 147,729.08, 221,662.82 and 72,808.39 is: 109,246.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,729.08 : 221,662.82 = 72,808.39 : x
  2. Step 2: Convert to fraction form
    147,729.08/221,662.82 = 72,808.39/x
  3. Step 3: Cross multiply
    147,729.08x = 221,662.82 × 72,808.39
  4. Step 4: Simplify right side
    147,729.08x = 16,138,912,361.69
  5. Step 5: Solve for x
    x = 16,138,912,361.69/147,729.08
  6. Step 6: Final answer
    x = 109,246.68

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1.5x scale

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.