Home / 131,711.93-197,368.33-87,179.14

Finding the Fourth Proportional to 131,711.93, 197,368.33 and 87,179.14

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Solution

The fourth proportional to 131,711.93, 197,368.33 and 87,179.14 is: 130,636.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,711.93 : 197,368.33 = 87,179.14 : x
  2. Step 2: Convert to fraction form
    131,711.93/197,368.33 = 87,179.14/x
  3. Step 3: Cross multiply
    131,711.93x = 197,368.33 × 87,179.14
  4. Step 4: Simplify right side
    131,711.93x = 17,206,401,272.64
  5. Step 5: Solve for x
    x = 17,206,401,272.64/131,711.93
  6. Step 6: Final answer
    x = 130,636.62

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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.