Home / 149,084.46-205,736.49-85,459.14

Finding the Fourth Proportional to 149,084.46, 205,736.49 and 85,459.14

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Solution

The fourth proportional to 149,084.46, 205,736.49 and 85,459.14 is: 117,933.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,084.46 : 205,736.49 = 85,459.14 : x
  2. Step 2: Convert to fraction form
    149,084.46/205,736.49 = 85,459.14/x
  3. Step 3: Cross multiply
    149,084.46x = 205,736.49 × 85,459.14
  4. Step 4: Simplify right side
    149,084.46x = 17,582,063,502.02
  5. Step 5: Solve for x
    x = 17,582,063,502.02/149,084.46
  6. Step 6: Final answer
    x = 117,933.58

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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.