Home / 141,949.52-212,817.36-85,777.68

Finding the Fourth Proportional to 141,949.52, 212,817.36 and 85,777.68

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Solution

The fourth proportional to 141,949.52, 212,817.36 and 85,777.68 is: 128,601.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,949.52 : 212,817.36 = 85,777.68 : x
  2. Step 2: Convert to fraction form
    141,949.52/212,817.36 = 85,777.68/x
  3. Step 3: Cross multiply
    141,949.52x = 212,817.36 × 85,777.68
  4. Step 4: Simplify right side
    141,949.52x = 18,254,979,404.52
  5. Step 5: Solve for x
    x = 18,254,979,404.52/141,949.52
  6. Step 6: Final answer
    x = 128,601.91

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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.