Home / 131,721.80-197,679.90-52,892.60

Finding the Fourth Proportional to 131,721.80, 197,679.90 and 52,892.60

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Solution

The fourth proportional to 131,721.80, 197,679.90 and 52,892.60 is: 79,377.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,721.80 : 197,679.90 = 52,892.60 : x
  2. Step 2: Convert to fraction form
    131,721.80/197,679.90 = 52,892.60/x
  3. Step 3: Cross multiply
    131,721.80x = 197,679.90 × 52,892.60
  4. Step 4: Simplify right side
    131,721.80x = 10,455,803,878.74
  5. Step 5: Solve for x
    x = 10,455,803,878.74/131,721.80
  6. Step 6: Final answer
    x = 79,377.93

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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.