Home / 131,710.40-196,982.40-110,715.20

Finding the Fourth Proportional to 131,710.40, 196,982.40 and 110,715.20

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Solution

The fourth proportional to 131,710.40, 196,982.40 and 110,715.20 is: 165,582.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,710.40 : 196,982.40 = 110,715.20 : x
  2. Step 2: Convert to fraction form
    131,710.40/196,982.40 = 110,715.20/x
  3. Step 3: Cross multiply
    131,710.40x = 196,982.40 × 110,715.20
  4. Step 4: Simplify right side
    131,710.40x = 21,808,945,812.48
  5. Step 5: Solve for x
    x = 21,808,945,812.48/131,710.40
  6. Step 6: Final answer
    x = 165,582.56

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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.