Home / 118,378.24-163,321.45-67,378.21

Finding the Fourth Proportional to 118,378.24, 163,321.45 and 67,378.21

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Solution

The fourth proportional to 118,378.24, 163,321.45 and 67,378.21 is: 92,958.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,378.24 : 163,321.45 = 67,378.21 : x
  2. Step 2: Convert to fraction form
    118,378.24/163,321.45 = 67,378.21/x
  3. Step 3: Cross multiply
    118,378.24x = 163,321.45 × 67,378.21
  4. Step 4: Simplify right side
    118,378.24x = 11,004,306,378.86
  5. Step 5: Solve for x
    x = 11,004,306,378.86/118,378.24
  6. Step 6: Final answer
    x = 92,958.86

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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.