Home / 99,919.95-149,749.92-40,686.27

Finding the Fourth Proportional to 99,919.95, 149,749.92 and 40,686.27

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Solution

The fourth proportional to 99,919.95, 149,749.92 and 40,686.27 is: 60,976.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,919.95 : 149,749.92 = 40,686.27 : x
  2. Step 2: Convert to fraction form
    99,919.95/149,749.92 = 40,686.27/x
  3. Step 3: Cross multiply
    99,919.95x = 149,749.92 × 40,686.27
  4. Step 4: Simplify right side
    99,919.95x = 6,092,765,677.60
  5. Step 5: Solve for x
    x = 6,092,765,677.60/99,919.95
  6. Step 6: Final answer
    x = 60,976.47

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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.