Home / 99,220.08-136,919.77-58,932.78

Finding the Fourth Proportional to 99,220.08, 136,919.77 and 58,932.78

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Solution

The fourth proportional to 99,220.08, 136,919.77 and 58,932.78 is: 81,324.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,220.08 : 136,919.77 = 58,932.78 : x
  2. Step 2: Convert to fraction form
    99,220.08/136,919.77 = 58,932.78/x
  3. Step 3: Cross multiply
    99,220.08x = 136,919.77 × 58,932.78
  4. Step 4: Simplify right side
    99,220.08x = 8,069,062,683.06
  5. Step 5: Solve for x
    x = 8,069,062,683.06/99,220.08
  6. Step 6: Final answer
    x = 81,324.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.