Home / 112,944.08-155,866.20-62,642

Finding the Fourth Proportional to 112,944.08, 155,866.20 and 62,642

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Solution

The fourth proportional to 112,944.08, 155,866.20 and 62,642 is: 86,447.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,944.08 : 155,866.20 = 62,642 : x
  2. Step 2: Convert to fraction form
    112,944.08/155,866.20 = 62,642/x
  3. Step 3: Cross multiply
    112,944.08x = 155,866.20 × 62,642
  4. Step 4: Simplify right side
    112,944.08x = 9,763,770,500.40
  5. Step 5: Solve for x
    x = 9,763,770,500.40/112,944.08
  6. Step 6: Final answer
    x = 86,447.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.