Home / 99,619.80-149,429.70-92,016.60

Finding the Fourth Proportional to 99,619.80, 149,429.70 and 92,016.60

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Solution

The fourth proportional to 99,619.80, 149,429.70 and 92,016.60 is: 138,024.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,619.80 : 149,429.70 = 92,016.60 : x
  2. Step 2: Convert to fraction form
    99,619.80/149,429.70 = 92,016.60/x
  3. Step 3: Cross multiply
    99,619.80x = 149,429.70 × 92,016.60
  4. Step 4: Simplify right side
    99,619.80x = 13,750,012,933.02
  5. Step 5: Solve for x
    x = 13,750,012,933.02/99,619.80
  6. Step 6: Final answer
    x = 138,024.90

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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.