Home / 102,288.09-141,157.61-56,974.77

Finding the Fourth Proportional to 102,288.09, 141,157.61 and 56,974.77

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Solution

The fourth proportional to 102,288.09, 141,157.61 and 56,974.77 is: 78,625.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,288.09 : 141,157.61 = 56,974.77 : x
  2. Step 2: Convert to fraction form
    102,288.09/141,157.61 = 56,974.77/x
  3. Step 3: Cross multiply
    102,288.09x = 141,157.61 × 56,974.77
  4. Step 4: Simplify right side
    102,288.09x = 8,042,422,363.50
  5. Step 5: Solve for x
    x = 8,042,422,363.50/102,288.09
  6. Step 6: Final answer
    x = 78,625.21

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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.