Home / 99,645.90-149,556.33-55,322.70

Finding the Fourth Proportional to 99,645.90, 149,556.33 and 55,322.70

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Solution

The fourth proportional to 99,645.90, 149,556.33 and 55,322.70 is: 83,032.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,645.90 : 149,556.33 = 55,322.70 : x
  2. Step 2: Convert to fraction form
    99,645.90/149,556.33 = 55,322.70/x
  3. Step 3: Cross multiply
    99,645.90x = 149,556.33 × 55,322.70
  4. Step 4: Simplify right side
    99,645.90x = 8,273,859,977.69
  5. Step 5: Solve for x
    x = 8,273,859,977.69/99,645.90
  6. Step 6: Final answer
    x = 83,032.62

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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.