Home / 131,215.80-196,823.70-52,386.60

Finding the Fourth Proportional to 131,215.80, 196,823.70 and 52,386.60

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Solution

The fourth proportional to 131,215.80, 196,823.70 and 52,386.60 is: 78,579.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,215.80 : 196,823.70 = 52,386.60 : x
  2. Step 2: Convert to fraction form
    131,215.80/196,823.70 = 52,386.60/x
  3. Step 3: Cross multiply
    131,215.80x = 196,823.70 × 52,386.60
  4. Step 4: Simplify right side
    131,215.80x = 10,310,924,442.42
  5. Step 5: Solve for x
    x = 10,310,924,442.42/131,215.80
  6. Step 6: Final answer
    x = 78,579.90

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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.