Home / 136,889.46-205,353.90-42,127.70

Finding the Fourth Proportional to 136,889.46, 205,353.90 and 42,127.70

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Solution

The fourth proportional to 136,889.46, 205,353.90 and 42,127.70 is: 63,197.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,889.46 : 205,353.90 = 42,127.70 : x
  2. Step 2: Convert to fraction form
    136,889.46/205,353.90 = 42,127.70/x
  3. Step 3: Cross multiply
    136,889.46x = 205,353.90 × 42,127.70
  4. Step 4: Simplify right side
    136,889.46x = 8,651,086,466.26
  5. Step 5: Solve for x
    x = 8,651,086,466.26/136,889.46
  6. Step 6: Final answer
    x = 63,197.61

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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.