Home / 136,844.55-188,845.75-76,415.01

Finding the Fourth Proportional to 136,844.55, 188,845.75 and 76,415.01

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Solution

The fourth proportional to 136,844.55, 188,845.75 and 76,415.01 is: 105,452.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,844.55 : 188,845.75 = 76,415.01 : x
  2. Step 2: Convert to fraction form
    136,844.55/188,845.75 = 76,415.01/x
  3. Step 3: Cross multiply
    136,844.55x = 188,845.75 × 76,415.01
  4. Step 4: Simplify right side
    136,844.55x = 14,430,649,874.71
  5. Step 5: Solve for x
    x = 14,430,649,874.71/136,844.55
  6. Step 6: Final answer
    x = 105,452.87

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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.