Home / 100,236.01-138,273.20-61,983.35

Finding the Fourth Proportional to 100,236.01, 138,273.20 and 61,983.35

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Solution

The fourth proportional to 100,236.01, 138,273.20 and 61,983.35 is: 85,504.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,236.01 : 138,273.20 = 61,983.35 : x
  2. Step 2: Convert to fraction form
    100,236.01/138,273.20 = 61,983.35/x
  3. Step 3: Cross multiply
    100,236.01x = 138,273.20 × 61,983.35
  4. Step 4: Simplify right side
    100,236.01x = 8,570,636,651.86
  5. Step 5: Solve for x
    x = 8,570,636,651.86/100,236.01
  6. Step 6: Final answer
    x = 85,504.57

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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.