Home / 131,908.80-197,474.40-87,585.60

Finding the Fourth Proportional to 131,908.80, 197,474.40 and 87,585.60

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Solution

The fourth proportional to 131,908.80, 197,474.40 and 87,585.60 is: 131,120.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,908.80 : 197,474.40 = 87,585.60 : x
  2. Step 2: Convert to fraction form
    131,908.80/197,474.40 = 87,585.60/x
  3. Step 3: Cross multiply
    131,908.80x = 197,474.40 × 87,585.60
  4. Step 4: Simplify right side
    131,908.80x = 17,295,913,808.64
  5. Step 5: Solve for x
    x = 17,295,913,808.64/131,908.80
  6. Step 6: Final answer
    x = 131,120.24

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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.