Home / 120,998.08-166,952.76-70,687.36

Finding the Fourth Proportional to 120,998.08, 166,952.76 and 70,687.36

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Solution

The fourth proportional to 120,998.08, 166,952.76 and 70,687.36 is: 97,534.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,998.08 : 166,952.76 = 70,687.36 : x
  2. Step 2: Convert to fraction form
    120,998.08/166,952.76 = 70,687.36/x
  3. Step 3: Cross multiply
    120,998.08x = 166,952.76 × 70,687.36
  4. Step 4: Simplify right side
    120,998.08x = 11,801,449,849.11
  5. Step 5: Solve for x
    x = 11,801,449,849.11/120,998.08
  6. Step 6: Final answer
    x = 97,534.19

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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.