Home / 118,219.91-163,142.64-67,232.66

Finding the Fourth Proportional to 118,219.91, 163,142.64 and 67,232.66

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Solution

The fourth proportional to 118,219.91, 163,142.64 and 67,232.66 is: 92,780.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,219.91 : 163,142.64 = 67,232.66 : x
  2. Step 2: Convert to fraction form
    118,219.91/163,142.64 = 67,232.66/x
  3. Step 3: Cross multiply
    118,219.91x = 163,142.64 × 67,232.66
  4. Step 4: Simplify right side
    118,219.91x = 10,968,513,646.62
  5. Step 5: Solve for x
    x = 10,968,513,646.62/118,219.91
  6. Step 6: Final answer
    x = 92,780.60

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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.