Home / 206,981.19-310,592.25-87,029.45

Finding the Fourth Proportional to 206,981.19, 310,592.25 and 87,029.45

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Solution

The fourth proportional to 206,981.19, 310,592.25 and 87,029.45 is: 130,594.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,981.19 : 310,592.25 = 87,029.45 : x
  2. Step 2: Convert to fraction form
    206,981.19/310,592.25 = 87,029.45/x
  3. Step 3: Cross multiply
    206,981.19x = 310,592.25 × 87,029.45
  4. Step 4: Simplify right side
    206,981.19x = 27,030,672,256.62
  5. Step 5: Solve for x
    x = 27,030,672,256.62/206,981.19
  6. Step 6: Final answer
    x = 130,594.83

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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.