Home / 131,438.40-197,327.09-112,837.96

Finding the Fourth Proportional to 131,438.40, 197,327.09 and 112,837.96

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Solution

The fourth proportional to 131,438.40, 197,327.09 and 112,837.96 is: 169,402.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,438.40 : 197,327.09 = 112,837.96 : x
  2. Step 2: Convert to fraction form
    131,438.40/197,327.09 = 112,837.96/x
  3. Step 3: Cross multiply
    131,438.40x = 197,327.09 × 112,837.96
  4. Step 4: Simplify right side
    131,438.40x = 22,265,986,288.34
  5. Step 5: Solve for x
    x = 22,265,986,288.34/131,438.40
  6. Step 6: Final answer
    x = 169,402.44

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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.