Home / 138,166.10-207,219.18-49,425.74

Finding the Fourth Proportional to 138,166.10, 207,219.18 and 49,425.74

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Solution

The fourth proportional to 138,166.10, 207,219.18 and 49,425.74 is: 74,127.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,166.10 : 207,219.18 = 49,425.74 : x
  2. Step 2: Convert to fraction form
    138,166.10/207,219.18 = 49,425.74/x
  3. Step 3: Cross multiply
    138,166.10x = 207,219.18 × 49,425.74
  4. Step 4: Simplify right side
    138,166.10x = 10,241,961,313.69
  5. Step 5: Solve for x
    x = 10,241,961,313.69/138,166.10
  6. Step 6: Final answer
    x = 74,127.89

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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.