Home / 142,621.36-213,937.00-67,702.91

Finding the Fourth Proportional to 142,621.36, 213,937.00 and 67,702.91

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Solution

The fourth proportional to 142,621.36, 213,937.00 and 67,702.91 is: 101,556.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,621.36 : 213,937.00 = 67,702.91 : x
  2. Step 2: Convert to fraction form
    142,621.36/213,937.00 = 67,702.91/x
  3. Step 3: Cross multiply
    142,621.36x = 213,937.00 × 67,702.91
  4. Step 4: Simplify right side
    142,621.36x = 14,484,156,217.73
  5. Step 5: Solve for x
    x = 14,484,156,217.73/142,621.36
  6. Step 6: Final answer
    x = 101,556.71

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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.