Home / 100,617.42-138,846.39-60,311.01

Finding the Fourth Proportional to 100,617.42, 138,846.39 and 60,311.01

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Solution

The fourth proportional to 100,617.42, 138,846.39 and 60,311.01 is: 83,225.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,617.42 : 138,846.39 = 60,311.01 : x
  2. Step 2: Convert to fraction form
    100,617.42/138,846.39 = 60,311.01/x
  3. Step 3: Cross multiply
    100,617.42x = 138,846.39 × 60,311.01
  4. Step 4: Simplify right side
    100,617.42x = 8,373,966,015.75
  5. Step 5: Solve for x
    x = 8,373,966,015.75/100,617.42
  6. Step 6: Final answer
    x = 83,225.81

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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.