Home / 131,000.36-196,538.81-42,251.90

Finding the Fourth Proportional to 131,000.36, 196,538.81 and 42,251.90

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Solution

The fourth proportional to 131,000.36, 196,538.81 and 42,251.90 is: 63,390.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,000.36 : 196,538.81 = 42,251.90 : x
  2. Step 2: Convert to fraction form
    131,000.36/196,538.81 = 42,251.90/x
  3. Step 3: Cross multiply
    131,000.36x = 196,538.81 × 42,251.90
  4. Step 4: Simplify right side
    131,000.36x = 8,304,136,952.29
  5. Step 5: Solve for x
    x = 8,304,136,952.29/131,000.36
  6. Step 6: Final answer
    x = 63,390.19

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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.