Home / 129,790.20-194,652.90-49,810.80

Finding the Fourth Proportional to 129,790.20, 194,652.90 and 49,810.80

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Solution

The fourth proportional to 129,790.20, 194,652.90 and 49,810.80 is: 74,703.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,790.20 : 194,652.90 = 49,810.80 : x
  2. Step 2: Convert to fraction form
    129,790.20/194,652.90 = 49,810.80/x
  3. Step 3: Cross multiply
    129,790.20x = 194,652.90 × 49,810.80
  4. Step 4: Simplify right side
    129,790.20x = 9,695,816,671.32
  5. Step 5: Solve for x
    x = 9,695,816,671.32/129,790.20
  6. Step 6: Final answer
    x = 74,703.77

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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.