Home / 186,774.19-280,064.01-66,784.89

Finding the Fourth Proportional to 186,774.19, 280,064.01 and 66,784.89

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Solution

The fourth proportional to 186,774.19, 280,064.01 and 66,784.89 is: 100,142.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,774.19 : 280,064.01 = 66,784.89 : x
  2. Step 2: Convert to fraction form
    186,774.19/280,064.01 = 66,784.89/x
  3. Step 3: Cross multiply
    186,774.19x = 280,064.01 × 66,784.89
  4. Step 4: Simplify right side
    186,774.19x = 18,704,043,933.85
  5. Step 5: Solve for x
    x = 18,704,043,933.85/186,774.19
  6. Step 6: Final answer
    x = 100,142.55

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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.