Home / 131,390.40-197,134.20-52,561.20

Finding the Fourth Proportional to 131,390.40, 197,134.20 and 52,561.20

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Solution

The fourth proportional to 131,390.40, 197,134.20 and 52,561.20 is: 78,861.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,390.40 : 197,134.20 = 52,561.20 : x
  2. Step 2: Convert to fraction form
    131,390.40/197,134.20 = 52,561.20/x
  3. Step 3: Cross multiply
    131,390.40x = 197,134.20 × 52,561.20
  4. Step 4: Simplify right side
    131,390.40x = 10,361,610,113.04
  5. Step 5: Solve for x
    x = 10,361,610,113.04/131,390.40
  6. Step 6: Final answer
    x = 78,861.24

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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.