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Finding the Fourth Proportional to 177,463.90, 245,010.72 and 112,969.54

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Solution

The fourth proportional to 177,463.90, 245,010.72 and 112,969.54 is: 155,968.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,463.90 : 245,010.72 = 112,969.54 : x
  2. Step 2: Convert to fraction form
    177,463.90/245,010.72 = 112,969.54/x
  3. Step 3: Cross multiply
    177,463.90x = 245,010.72 × 112,969.54
  4. Step 4: Simplify right side
    177,463.90x = 27,678,748,333.47
  5. Step 5: Solve for x
    x = 27,678,748,333.47/177,463.90
  6. Step 6: Final answer
    x = 155,968.33

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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.