Home / 147,729.40-221,450.10-84,484.60

Finding the Fourth Proportional to 147,729.40, 221,450.10 and 84,484.60

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Solution

The fourth proportional to 147,729.40, 221,450.10 and 84,484.60 is: 126,644.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,729.40 : 221,450.10 = 84,484.60 : x
  2. Step 2: Convert to fraction form
    147,729.40/221,450.10 = 84,484.60/x
  3. Step 3: Cross multiply
    147,729.40x = 221,450.10 × 84,484.60
  4. Step 4: Simplify right side
    147,729.40x = 18,709,123,118.46
  5. Step 5: Solve for x
    x = 18,709,123,118.46/147,729.40
  6. Step 6: Final answer
    x = 126,644.55

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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.