Home / 112,977.71-155,767.38-82,710.48

Finding the Fourth Proportional to 112,977.71, 155,767.38 and 82,710.48

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Solution

The fourth proportional to 112,977.71, 155,767.38 and 82,710.48 is: 114,036.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,977.71 : 155,767.38 = 82,710.48 : x
  2. Step 2: Convert to fraction form
    112,977.71/155,767.38 = 82,710.48/x
  3. Step 3: Cross multiply
    112,977.71x = 155,767.38 × 82,710.48
  4. Step 4: Simplify right side
    112,977.71x = 12,883,594,768.14
  5. Step 5: Solve for x
    x = 12,883,594,768.14/112,977.71
  6. Step 6: Final answer
    x = 114,036.61

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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.