Home / 126,645.46-174,733.10-72,929.08

Finding the Fourth Proportional to 126,645.46, 174,733.10 and 72,929.08

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Solution

The fourth proportional to 126,645.46, 174,733.10 and 72,929.08 is: 100,620.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,645.46 : 174,733.10 = 72,929.08 : x
  2. Step 2: Convert to fraction form
    126,645.46/174,733.10 = 72,929.08/x
  3. Step 3: Cross multiply
    126,645.46x = 174,733.10 × 72,929.08
  4. Step 4: Simplify right side
    126,645.46x = 12,743,124,228.55
  5. Step 5: Solve for x
    x = 12,743,124,228.55/126,645.46
  6. Step 6: Final answer
    x = 100,620.46

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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.