Home / 126,780.39-174,929.22-75,785.49

Finding the Fourth Proportional to 126,780.39, 174,929.22 and 75,785.49

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Solution

The fourth proportional to 126,780.39, 174,929.22 and 75,785.49 is: 104,567.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,780.39 : 174,929.22 = 75,785.49 : x
  2. Step 2: Convert to fraction form
    126,780.39/174,929.22 = 75,785.49/x
  3. Step 3: Cross multiply
    126,780.39x = 174,929.22 × 75,785.49
  4. Step 4: Simplify right side
    126,780.39x = 13,257,096,653.02
  5. Step 5: Solve for x
    x = 13,257,096,653.02/126,780.39
  6. Step 6: Final answer
    x = 104,567.41

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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.