Home / 116,390.31-174,450.06-66,505.38

Finding the Fourth Proportional to 116,390.31, 174,450.06 and 66,505.38

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Solution

The fourth proportional to 116,390.31, 174,450.06 and 66,505.38 is: 99,680.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,390.31 : 174,450.06 = 66,505.38 : x
  2. Step 2: Convert to fraction form
    116,390.31/174,450.06 = 66,505.38/x
  3. Step 3: Cross multiply
    116,390.31x = 174,450.06 × 66,505.38
  4. Step 4: Simplify right side
    116,390.31x = 11,601,867,531.32
  5. Step 5: Solve for x
    x = 11,601,867,531.32/116,390.31
  6. Step 6: Final answer
    x = 99,680.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.