Home / 131,431.40-197,147.10-75,962.60

Finding the Fourth Proportional to 131,431.40, 197,147.10 and 75,962.60

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Solution

The fourth proportional to 131,431.40, 197,147.10 and 75,962.60 is: 113,943.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,431.40 : 197,147.10 = 75,962.60 : x
  2. Step 2: Convert to fraction form
    131,431.40/197,147.10 = 75,962.60/x
  3. Step 3: Cross multiply
    131,431.40x = 197,147.10 × 75,962.60
  4. Step 4: Simplify right side
    131,431.40x = 14,975,806,298.46
  5. Step 5: Solve for x
    x = 14,975,806,298.46/131,431.40
  6. Step 6: Final answer
    x = 113,943.90

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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.