Home / 115,746.31-159,675.96-74,923.61

Finding the Fourth Proportional to 115,746.31, 159,675.96 and 74,923.61

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Solution

The fourth proportional to 115,746.31, 159,675.96 and 74,923.61 is: 103,359.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,746.31 : 159,675.96 = 74,923.61 : x
  2. Step 2: Convert to fraction form
    115,746.31/159,675.96 = 74,923.61/x
  3. Step 3: Cross multiply
    115,746.31x = 159,675.96 × 74,923.61
  4. Step 4: Simplify right side
    115,746.31x = 11,963,498,836.00
  5. Step 5: Solve for x
    x = 11,963,498,836.00/115,746.31
  6. Step 6: Final answer
    x = 103,359.66

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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.