Home / 136,275.21-188,056.85-75,845.61

Finding the Fourth Proportional to 136,275.21, 188,056.85 and 75,845.61

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Solution

The fourth proportional to 136,275.21, 188,056.85 and 75,845.61 is: 104,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,275.21 : 188,056.85 = 75,845.61 : x
  2. Step 2: Convert to fraction form
    136,275.21/188,056.85 = 75,845.61/x
  3. Step 3: Cross multiply
    136,275.21x = 188,056.85 × 75,845.61
  4. Step 4: Simplify right side
    136,275.21x = 14,263,286,123.70
  5. Step 5: Solve for x
    x = 14,263,286,123.70/136,275.21
  6. Step 6: Final answer
    x = 104,665.30

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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.