Home / 118,217.91-163,139.88-67,230.66

Finding the Fourth Proportional to 118,217.91, 163,139.88 and 67,230.66

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Solution

The fourth proportional to 118,217.91, 163,139.88 and 67,230.66 is: 92,777.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,217.91 : 163,139.88 = 67,230.66 : x
  2. Step 2: Convert to fraction form
    118,217.91/163,139.88 = 67,230.66/x
  3. Step 3: Cross multiply
    118,217.91x = 163,139.88 × 67,230.66
  4. Step 4: Simplify right side
    118,217.91x = 10,968,001,804.72
  5. Step 5: Solve for x
    x = 10,968,001,804.72/118,217.91
  6. Step 6: Final answer
    x = 92,777.84

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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.