Home / 128,146.41-192,260.72-61,591.34

Finding the Fourth Proportional to 128,146.41, 192,260.72 and 61,591.34

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Solution

The fourth proportional to 128,146.41, 192,260.72 and 61,591.34 is: 92,406.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,146.41 : 192,260.72 = 61,591.34 : x
  2. Step 2: Convert to fraction form
    128,146.41/192,260.72 = 61,591.34/x
  3. Step 3: Cross multiply
    128,146.41x = 192,260.72 × 61,591.34
  4. Step 4: Simplify right side
    128,146.41x = 11,841,596,008.80
  5. Step 5: Solve for x
    x = 11,841,596,008.80/128,146.41
  6. Step 6: Final answer
    x = 92,406.77

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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.