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Finding the Fourth Proportional to 126,571.60, 189,867.12 and 37,818.28

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Solution

The fourth proportional to 126,571.60, 189,867.12 and 37,818.28 is: 56,730.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,571.60 : 189,867.12 = 37,818.28 : x
  2. Step 2: Convert to fraction form
    126,571.60/189,867.12 = 37,818.28/x
  3. Step 3: Cross multiply
    126,571.60x = 189,867.12 × 37,818.28
  4. Step 4: Simplify right side
    126,571.60x = 7,180,447,906.95
  5. Step 5: Solve for x
    x = 7,180,447,906.95/126,571.60
  6. Step 6: Final answer
    x = 56,730.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.