Home / 102,285.32-141,149.80-56,965.22

Finding the Fourth Proportional to 102,285.32, 141,149.80 and 56,965.22

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Solution

The fourth proportional to 102,285.32, 141,149.80 and 56,965.22 is: 78,609.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,285.32 : 141,149.80 = 56,965.22 : x
  2. Step 2: Convert to fraction form
    102,285.32/141,149.80 = 56,965.22/x
  3. Step 3: Cross multiply
    102,285.32x = 141,149.80 × 56,965.22
  4. Step 4: Simplify right side
    102,285.32x = 8,040,629,409.96
  5. Step 5: Solve for x
    x = 8,040,629,409.96/102,285.32
  6. Step 6: Final answer
    x = 78,609.81

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1.5x scale

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.