Home / 126,497.20-174,561.42-72,790.52

Finding the Fourth Proportional to 126,497.20, 174,561.42 and 72,790.52

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Solution

The fourth proportional to 126,497.20, 174,561.42 and 72,790.52 is: 100,448.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,497.20 : 174,561.42 = 72,790.52 : x
  2. Step 2: Convert to fraction form
    126,497.20/174,561.42 = 72,790.52/x
  3. Step 3: Cross multiply
    126,497.20x = 174,561.42 × 72,790.52
  4. Step 4: Simplify right side
    126,497.20x = 12,706,416,533.74
  5. Step 5: Solve for x
    x = 12,706,416,533.74/126,497.20
  6. Step 6: Final answer
    x = 100,448.20

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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.