Home / 137,619.20-206,429.44-37,780.80

Finding the Fourth Proportional to 137,619.20, 206,429.44 and 37,780.80

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Solution

The fourth proportional to 137,619.20, 206,429.44 and 37,780.80 is: 56,671.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,619.20 : 206,429.44 = 37,780.80 : x
  2. Step 2: Convert to fraction form
    137,619.20/206,429.44 = 37,780.80/x
  3. Step 3: Cross multiply
    137,619.20x = 206,429.44 × 37,780.80
  4. Step 4: Simplify right side
    137,619.20x = 7,799,069,386.75
  5. Step 5: Solve for x
    x = 7,799,069,386.75/137,619.20
  6. Step 6: Final answer
    x = 56,671.38

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1.5x scale

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.