Home / 194,719.60-268,715.10-108,686.80

Finding the Fourth Proportional to 194,719.60, 268,715.10 and 108,686.80

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Solution

The fourth proportional to 194,719.60, 268,715.10 and 108,686.80 is: 149,988.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,719.60 : 268,715.10 = 108,686.80 : x
  2. Step 2: Convert to fraction form
    194,719.60/268,715.10 = 108,686.80/x
  3. Step 3: Cross multiply
    194,719.60x = 268,715.10 × 108,686.80
  4. Step 4: Simplify right side
    194,719.60x = 29,205,784,330.68
  5. Step 5: Solve for x
    x = 29,205,784,330.68/194,719.60
  6. Step 6: Final answer
    x = 149,988.93

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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.