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Finding the Fourth Proportional to 157,804.35, 217,759.59 and 89,828.29

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Solution

The fourth proportional to 157,804.35, 217,759.59 and 89,828.29 is: 123,957.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,804.35 : 217,759.59 = 89,828.29 : x
  2. Step 2: Convert to fraction form
    157,804.35/217,759.59 = 89,828.29/x
  3. Step 3: Cross multiply
    157,804.35x = 217,759.59 × 89,828.29
  4. Step 4: Simplify right side
    157,804.35x = 19,560,971,873.00
  5. Step 5: Solve for x
    x = 19,560,971,873.00/157,804.35
  6. Step 6: Final answer
    x = 123,957.11

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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.