Home / 131,638.60-197,400.30-52,726.60

Finding the Fourth Proportional to 131,638.60, 197,400.30 and 52,726.60

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Solution

The fourth proportional to 131,638.60, 197,400.30 and 52,726.60 is: 79,066.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,638.60 : 197,400.30 = 52,726.60 : x
  2. Step 2: Convert to fraction form
    131,638.60/197,400.30 = 52,726.60/x
  3. Step 3: Cross multiply
    131,638.60x = 197,400.30 × 52,726.60
  4. Step 4: Simplify right side
    131,638.60x = 10,408,246,657.98
  5. Step 5: Solve for x
    x = 10,408,246,657.98/131,638.60
  6. Step 6: Final answer
    x = 79,066.83

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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.