Home / 131,506.20-197,186.40-52,531.20

Finding the Fourth Proportional to 131,506.20, 197,186.40 and 52,531.20

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Solution

The fourth proportional to 131,506.20, 197,186.40 and 52,531.20 is: 78,767.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,506.20 : 197,186.40 = 52,531.20 : x
  2. Step 2: Convert to fraction form
    131,506.20/197,186.40 = 52,531.20/x
  3. Step 3: Cross multiply
    131,506.20x = 197,186.40 × 52,531.20
  4. Step 4: Simplify right side
    131,506.20x = 10,358,438,215.68
  5. Step 5: Solve for x
    x = 10,358,438,215.68/131,506.20
  6. Step 6: Final answer
    x = 78,767.68

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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.