Home / 171,122.22-236,177.85-99,543.78

Finding the Fourth Proportional to 171,122.22, 236,177.85 and 99,543.78

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Solution

The fourth proportional to 171,122.22, 236,177.85 and 99,543.78 is: 137,387.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,122.22 : 236,177.85 = 99,543.78 : x
  2. Step 2: Convert to fraction form
    171,122.22/236,177.85 = 99,543.78/x
  3. Step 3: Cross multiply
    171,122.22x = 236,177.85 × 99,543.78
  4. Step 4: Simplify right side
    171,122.22x = 23,510,035,941.27
  5. Step 5: Solve for x
    x = 23,510,035,941.27/171,122.22
  6. Step 6: Final answer
    x = 137,387.39

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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.