Home / 206,982.19-310,593.75-87,030.45

Finding the Fourth Proportional to 206,982.19, 310,593.75 and 87,030.45

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Solution

The fourth proportional to 206,982.19, 310,593.75 and 87,030.45 is: 130,596.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,982.19 : 310,593.75 = 87,030.45 : x
  2. Step 2: Convert to fraction form
    206,982.19/310,593.75 = 87,030.45/x
  3. Step 3: Cross multiply
    206,982.19x = 310,593.75 × 87,030.45
  4. Step 4: Simplify right side
    206,982.19x = 27,031,113,829.69
  5. Step 5: Solve for x
    x = 27,031,113,829.69/206,982.19
  6. Step 6: Final answer
    x = 130,596.33

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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.