Home / 105,448.76-145,519.29-57,702.11

Finding the Fourth Proportional to 105,448.76, 145,519.29 and 57,702.11

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Solution

The fourth proportional to 105,448.76, 145,519.29 and 57,702.11 is: 79,628.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,448.76 : 145,519.29 = 57,702.11 : x
  2. Step 2: Convert to fraction form
    105,448.76/145,519.29 = 57,702.11/x
  3. Step 3: Cross multiply
    105,448.76x = 145,519.29 × 57,702.11
  4. Step 4: Simplify right side
    105,448.76x = 8,396,770,078.70
  5. Step 5: Solve for x
    x = 8,396,770,078.70/105,448.76
  6. Step 6: Final answer
    x = 79,628.91

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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.