Home / 131,214.30-196,821.45-48,140.70

Finding the Fourth Proportional to 131,214.30, 196,821.45 and 48,140.70

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Solution

The fourth proportional to 131,214.30, 196,821.45 and 48,140.70 is: 72,211.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,214.30 : 196,821.45 = 48,140.70 : x
  2. Step 2: Convert to fraction form
    131,214.30/196,821.45 = 48,140.70/x
  3. Step 3: Cross multiply
    131,214.30x = 196,821.45 × 48,140.70
  4. Step 4: Simplify right side
    131,214.30x = 9,475,122,378.02
  5. Step 5: Solve for x
    x = 9,475,122,378.02/131,214.30
  6. Step 6: Final answer
    x = 72,211.05

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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.