Home / 99,830.03-137,771.02-54,512.23

Finding the Fourth Proportional to 99,830.03, 137,771.02 and 54,512.23

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Solution

The fourth proportional to 99,830.03, 137,771.02 and 54,512.23 is: 75,229.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,830.03 : 137,771.02 = 54,512.23 : x
  2. Step 2: Convert to fraction form
    99,830.03/137,771.02 = 54,512.23/x
  3. Step 3: Cross multiply
    99,830.03x = 137,771.02 × 54,512.23
  4. Step 4: Simplify right side
    99,830.03x = 7,510,204,840.72
  5. Step 5: Solve for x
    x = 7,510,204,840.72/99,830.03
  6. Step 6: Final answer
    x = 75,229.92

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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.