Home / 136,438.36-188,282.10-76,008.92

Finding the Fourth Proportional to 136,438.36, 188,282.10 and 76,008.92

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Solution

The fourth proportional to 136,438.36, 188,282.10 and 76,008.92 is: 104,890.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,438.36 : 188,282.10 = 76,008.92 : x
  2. Step 2: Convert to fraction form
    136,438.36/188,282.10 = 76,008.92/x
  3. Step 3: Cross multiply
    136,438.36x = 188,282.10 × 76,008.92
  4. Step 4: Simplify right side
    136,438.36x = 14,311,119,076.33
  5. Step 5: Solve for x
    x = 14,311,119,076.33/136,438.36
  6. Step 6: Final answer
    x = 104,890.73

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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.