Home / 132,981.40-199,601.70-66,496.60

Finding the Fourth Proportional to 132,981.40, 199,601.70 and 66,496.60

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Solution

The fourth proportional to 132,981.40, 199,601.70 and 66,496.60 is: 99,809.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,981.40 : 199,601.70 = 66,496.60 : x
  2. Step 2: Convert to fraction form
    132,981.40/199,601.70 = 66,496.60/x
  3. Step 3: Cross multiply
    132,981.40x = 199,601.70 × 66,496.60
  4. Step 4: Simplify right side
    132,981.40x = 13,272,834,404.22
  5. Step 5: Solve for x
    x = 13,272,834,404.22/132,981.40
  6. Step 6: Final answer
    x = 99,809.71

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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.