Home / 99,556.74-137,349.81-61,765.38

Finding the Fourth Proportional to 99,556.74, 137,349.81 and 61,765.38

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Solution

The fourth proportional to 99,556.74, 137,349.81 and 61,765.38 is: 85,212.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,556.74 : 137,349.81 = 61,765.38 : x
  2. Step 2: Convert to fraction form
    99,556.74/137,349.81 = 61,765.38/x
  3. Step 3: Cross multiply
    99,556.74x = 137,349.81 × 61,765.38
  4. Step 4: Simplify right side
    99,556.74x = 8,483,463,207.58
  5. Step 5: Solve for x
    x = 8,483,463,207.58/99,556.74
  6. Step 6: Final answer
    x = 85,212.34

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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.