Home / 99,644.40-149,554.08-55,321.20

Finding the Fourth Proportional to 99,644.40, 149,554.08 and 55,321.20

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Solution

The fourth proportional to 99,644.40, 149,554.08 and 55,321.20 is: 83,030.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,644.40 : 149,554.08 = 55,321.20 : x
  2. Step 2: Convert to fraction form
    99,644.40/149,554.08 = 55,321.20/x
  3. Step 3: Cross multiply
    99,644.40x = 149,554.08 × 55,321.20
  4. Step 4: Simplify right side
    99,644.40x = 8,273,511,170.50
  5. Step 5: Solve for x
    x = 8,273,511,170.50/99,644.40
  6. Step 6: Final answer
    x = 83,030.37

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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.