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Finding the Fourth Proportional to 126,810.69, 174,968.69 and 75,101.68

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Solution

The fourth proportional to 126,810.69, 174,968.69 and 75,101.68 is: 103,622.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,810.69 : 174,968.69 = 75,101.68 : x
  2. Step 2: Convert to fraction form
    126,810.69/174,968.69 = 75,101.68/x
  3. Step 3: Cross multiply
    126,810.69x = 174,968.69 × 75,101.68
  4. Step 4: Simplify right side
    126,810.69x = 13,140,442,566.40
  5. Step 5: Solve for x
    x = 13,140,442,566.40/126,810.69
  6. Step 6: Final answer
    x = 103,622.51

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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.