Home / 120,979.23-166,903.36-69,982.50

Finding the Fourth Proportional to 120,979.23, 166,903.36 and 69,982.50

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Solution

The fourth proportional to 120,979.23, 166,903.36 and 69,982.50 is: 96,548.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,979.23 : 166,903.36 = 69,982.50 : x
  2. Step 2: Convert to fraction form
    120,979.23/166,903.36 = 69,982.50/x
  3. Step 3: Cross multiply
    120,979.23x = 166,903.36 × 69,982.50
  4. Step 4: Simplify right side
    120,979.23x = 11,680,314,391.20
  5. Step 5: Solve for x
    x = 11,680,314,391.20/120,979.23
  6. Step 6: Final answer
    x = 96,548.10

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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.