Home / 131,955.40-197,976.54-87,756.04

Finding the Fourth Proportional to 131,955.40, 197,976.54 and 87,756.04

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Solution

The fourth proportional to 131,955.40, 197,976.54 and 87,756.04 is: 131,662.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,955.40 : 197,976.54 = 87,756.04 : x
  2. Step 2: Convert to fraction form
    131,955.40/197,976.54 = 87,756.04/x
  3. Step 3: Cross multiply
    131,955.40x = 197,976.54 × 87,756.04
  4. Step 4: Simplify right side
    131,955.40x = 17,373,637,163.30
  5. Step 5: Solve for x
    x = 17,373,637,163.30/131,955.40
  6. Step 6: Final answer
    x = 131,662.95

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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.