Home / 131,493.40-197,240.10-91,252.60

Finding the Fourth Proportional to 131,493.40, 197,240.10 and 91,252.60

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Solution

The fourth proportional to 131,493.40, 197,240.10 and 91,252.60 is: 136,878.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,493.40 : 197,240.10 = 91,252.60 : x
  2. Step 2: Convert to fraction form
    131,493.40/197,240.10 = 91,252.60/x
  3. Step 3: Cross multiply
    131,493.40x = 197,240.10 × 91,252.60
  4. Step 4: Simplify right side
    131,493.40x = 17,998,671,949.26
  5. Step 5: Solve for x
    x = 17,998,671,949.26/131,493.40
  6. Step 6: Final answer
    x = 136,878.90

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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.