Home / 99,714.41-137,785.09-75,799.57

Finding the Fourth Proportional to 99,714.41, 137,785.09 and 75,799.57

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Solution

The fourth proportional to 99,714.41, 137,785.09 and 75,799.57 is: 104,739.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,714.41 : 137,785.09 = 75,799.57 : x
  2. Step 2: Convert to fraction form
    99,714.41/137,785.09 = 75,799.57/x
  3. Step 3: Cross multiply
    99,714.41x = 137,785.09 × 75,799.57
  4. Step 4: Simplify right side
    99,714.41x = 10,444,050,040.45
  5. Step 5: Solve for x
    x = 10,444,050,040.45/99,714.41
  6. Step 6: Final answer
    x = 104,739.62

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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.