Home / 104,515.58-156,758.78-42,171.50

Finding the Fourth Proportional to 104,515.58, 156,758.78 and 42,171.50

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Solution

The fourth proportional to 104,515.58, 156,758.78 and 42,171.50 is: 63,251.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,515.58 : 156,758.78 = 42,171.50 : x
  2. Step 2: Convert to fraction form
    104,515.58/156,758.78 = 42,171.50/x
  3. Step 3: Cross multiply
    104,515.58x = 156,758.78 × 42,171.50
  4. Step 4: Simplify right side
    104,515.58x = 6,610,752,890.77
  5. Step 5: Solve for x
    x = 6,610,752,890.77/104,515.58
  6. Step 6: Final answer
    x = 63,251.36

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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.