Home / 131,416.12-197,134.71-52,487.02

Finding the Fourth Proportional to 131,416.12, 197,134.71 and 52,487.02

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Solution

The fourth proportional to 131,416.12, 197,134.71 and 52,487.02 is: 78,734.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,416.12 : 197,134.71 = 52,487.02 : x
  2. Step 2: Convert to fraction form
    131,416.12/197,134.71 = 52,487.02/x
  3. Step 3: Cross multiply
    131,416.12x = 197,134.71 × 52,487.02
  4. Step 4: Simplify right side
    131,416.12x = 10,347,013,466.46
  5. Step 5: Solve for x
    x = 10,347,013,466.46/131,416.12
  6. Step 6: Final answer
    x = 78,734.74

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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.