Home / 131,886.60-197,914.95-72,764.70

Finding the Fourth Proportional to 131,886.60, 197,914.95 and 72,764.70

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Solution

The fourth proportional to 131,886.60, 197,914.95 and 72,764.70 is: 109,193.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,886.60 : 197,914.95 = 72,764.70 : x
  2. Step 2: Convert to fraction form
    131,886.60/197,914.95 = 72,764.70/x
  3. Step 3: Cross multiply
    131,886.60x = 197,914.95 × 72,764.70
  4. Step 4: Simplify right side
    131,886.60x = 14,401,221,962.27
  5. Step 5: Solve for x
    x = 14,401,221,962.27/131,886.60
  6. Step 6: Final answer
    x = 109,193.97

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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.