Home / 102,531.97-153,802.62-31,449.43

Finding the Fourth Proportional to 102,531.97, 153,802.62 and 31,449.43

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Solution

The fourth proportional to 102,531.97, 153,802.62 and 31,449.43 is: 47,175.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,531.97 : 153,802.62 = 31,449.43 : x
  2. Step 2: Convert to fraction form
    102,531.97/153,802.62 = 31,449.43/x
  3. Step 3: Cross multiply
    102,531.97x = 153,802.62 × 31,449.43
  4. Step 4: Simplify right side
    102,531.97x = 4,837,004,731.51
  5. Step 5: Solve for x
    x = 4,837,004,731.51/102,531.97
  6. Step 6: Final answer
    x = 47,175.58

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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.