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Finding the Fourth Proportional to 126,367.68, 174,396.58 and 72,669.54

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Solution

The fourth proportional to 126,367.68, 174,396.58 and 72,669.54 is: 100,289.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,367.68 : 174,396.58 = 72,669.54 : x
  2. Step 2: Convert to fraction form
    126,367.68/174,396.58 = 72,669.54/x
  3. Step 3: Cross multiply
    126,367.68x = 174,396.58 × 72,669.54
  4. Step 4: Simplify right side
    126,367.68x = 12,673,319,246.17
  5. Step 5: Solve for x
    x = 12,673,319,246.17/126,367.68
  6. Step 6: Final answer
    x = 100,289.25

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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.