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Finding the Fourth Proportional to 126,759, 174,929.77 and 73,034.94

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Solution

The fourth proportional to 126,759, 174,929.77 and 73,034.94 is: 100,789.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,759 : 174,929.77 = 73,034.94 : x
  2. Step 2: Convert to fraction form
    126,759/174,929.77 = 73,034.94/x
  3. Step 3: Cross multiply
    126,759x = 174,929.77 × 73,034.94
  4. Step 4: Simplify right side
    126,759x = 12,775,985,256.16
  5. Step 5: Solve for x
    x = 12,775,985,256.16/126,759
  6. Step 6: Final answer
    x = 100,789.57

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1.5x scale

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.