Home / 149,949.40-224,780.10-86,704.60

Finding the Fourth Proportional to 149,949.40, 224,780.10 and 86,704.60

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Solution

The fourth proportional to 149,949.40, 224,780.10 and 86,704.60 is: 129,973.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,949.40 : 224,780.10 = 86,704.60 : x
  2. Step 2: Convert to fraction form
    149,949.40/224,780.10 = 86,704.60/x
  3. Step 3: Cross multiply
    149,949.40x = 224,780.10 × 86,704.60
  4. Step 4: Simplify right side
    149,949.40x = 19,489,468,658.46
  5. Step 5: Solve for x
    x = 19,489,468,658.46/149,949.40
  6. Step 6: Final answer
    x = 129,973.64

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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.