Home / 186,774.40-279,967.20-102,404.80

Finding the Fourth Proportional to 186,774.40, 279,967.20 and 102,404.80

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Solution

The fourth proportional to 186,774.40, 279,967.20 and 102,404.80 is: 153,500.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,774.40 : 279,967.20 = 102,404.80 : x
  2. Step 2: Convert to fraction form
    186,774.40/279,967.20 = 102,404.80/x
  3. Step 3: Cross multiply
    186,774.40x = 279,967.20 × 102,404.80
  4. Step 4: Simplify right side
    186,774.40x = 28,669,985,122.56
  5. Step 5: Solve for x
    x = 28,669,985,122.56/186,774.40
  6. Step 6: Final answer
    x = 153,500.61

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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.