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Finding the Fourth Proportional to 177,615.09, 245,097.09 and 101,142

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Solution

The fourth proportional to 177,615.09, 245,097.09 and 101,142 is: 139,569.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,615.09 : 245,097.09 = 101,142 : x
  2. Step 2: Convert to fraction form
    177,615.09/245,097.09 = 101,142/x
  3. Step 3: Cross multiply
    177,615.09x = 245,097.09 × 101,142
  4. Step 4: Simplify right side
    177,615.09x = 24,789,609,876.78
  5. Step 5: Solve for x
    x = 24,789,609,876.78/177,615.09
  6. Step 6: Final answer
    x = 139,569.28

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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.