Home / 99,828.70-149,743.05-92,611.60

Finding the Fourth Proportional to 99,828.70, 149,743.05 and 92,611.60

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Solution

The fourth proportional to 99,828.70, 149,743.05 and 92,611.60 is: 138,917.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,828.70 : 149,743.05 = 92,611.60 : x
  2. Step 2: Convert to fraction form
    99,828.70/149,743.05 = 92,611.60/x
  3. Step 3: Cross multiply
    99,828.70x = 149,743.05 × 92,611.60
  4. Step 4: Simplify right side
    99,828.70x = 13,867,943,449.38
  5. Step 5: Solve for x
    x = 13,867,943,449.38/99,828.70
  6. Step 6: Final answer
    x = 138,917.40

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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.