Home / 131,459.20-197,115.90-52,484.20

Finding the Fourth Proportional to 131,459.20, 197,115.90 and 52,484.20

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Solution

The fourth proportional to 131,459.20, 197,115.90 and 52,484.20 is: 78,697.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,459.20 : 197,115.90 = 52,484.20 : x
  2. Step 2: Convert to fraction form
    131,459.20/197,115.90 = 52,484.20/x
  3. Step 3: Cross multiply
    131,459.20x = 197,115.90 × 52,484.20
  4. Step 4: Simplify right side
    131,459.20x = 10,345,470,318.78
  5. Step 5: Solve for x
    x = 10,345,470,318.78/131,459.20
  6. Step 6: Final answer
    x = 78,697.20

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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.