Home / 136,406.46-188,241.27-79,056.90

Finding the Fourth Proportional to 136,406.46, 188,241.27 and 79,056.90

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Solution

The fourth proportional to 136,406.46, 188,241.27 and 79,056.90 is: 109,098.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,406.46 : 188,241.27 = 79,056.90 : x
  2. Step 2: Convert to fraction form
    136,406.46/188,241.27 = 79,056.90/x
  3. Step 3: Cross multiply
    136,406.46x = 188,241.27 × 79,056.90
  4. Step 4: Simplify right side
    136,406.46x = 14,881,771,258.26
  5. Step 5: Solve for x
    x = 14,881,771,258.26/136,406.46
  6. Step 6: Final answer
    x = 109,098.73

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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.