Home / 138,551.06-207,701.51-49,783.80

Finding the Fourth Proportional to 138,551.06, 207,701.51 and 49,783.80

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Solution

The fourth proportional to 138,551.06, 207,701.51 and 49,783.80 is: 74,630.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,551.06 : 207,701.51 = 49,783.80 : x
  2. Step 2: Convert to fraction form
    138,551.06/207,701.51 = 49,783.80/x
  3. Step 3: Cross multiply
    138,551.06x = 207,701.51 × 49,783.80
  4. Step 4: Simplify right side
    138,551.06x = 10,340,170,558.00
  5. Step 5: Solve for x
    x = 10,340,170,558.00/138,551.06
  6. Step 6: Final answer
    x = 74,630.76

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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.