Home / 102,456-141,415.20-57,769.92

Finding the Fourth Proportional to 102,456, 141,415.20 and 57,769.92

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Solution

The fourth proportional to 102,456, 141,415.20 and 57,769.92 is: 79,737.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,456 : 141,415.20 = 57,769.92 : x
  2. Step 2: Convert to fraction form
    102,456/141,415.20 = 57,769.92/x
  3. Step 3: Cross multiply
    102,456x = 141,415.20 × 57,769.92
  4. Step 4: Simplify right side
    102,456x = 8,169,544,790.78
  5. Step 5: Solve for x
    x = 8,169,544,790.78/102,456
  6. Step 6: Final answer
    x = 79,737.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.