Home / 118,406.39-163,403.18-64,694.73

Finding the Fourth Proportional to 118,406.39, 163,403.18 and 64,694.73

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Solution

The fourth proportional to 118,406.39, 163,403.18 and 64,694.73 is: 89,280.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,406.39 : 163,403.18 = 64,694.73 : x
  2. Step 2: Convert to fraction form
    118,406.39/163,403.18 = 64,694.73/x
  3. Step 3: Cross multiply
    118,406.39x = 163,403.18 × 64,694.73
  4. Step 4: Simplify right side
    118,406.39x = 10,571,324,287.77
  5. Step 5: Solve for x
    x = 10,571,324,287.77/118,406.39
  6. Step 6: Final answer
    x = 89,280.02

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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.