Home / 138,359.41-207,518.46-38,509.19

Finding the Fourth Proportional to 138,359.41, 207,518.46 and 38,509.19

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Solution

The fourth proportional to 138,359.41, 207,518.46 and 38,509.19 is: 57,758.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,359.41 : 207,518.46 = 38,509.19 : x
  2. Step 2: Convert to fraction form
    138,359.41/207,518.46 = 38,509.19/x
  3. Step 3: Cross multiply
    138,359.41x = 207,518.46 × 38,509.19
  4. Step 4: Simplify right side
    138,359.41x = 7,991,367,400.84
  5. Step 5: Solve for x
    x = 7,991,367,400.84/138,359.41
  6. Step 6: Final answer
    x = 57,758.03

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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.