Home / 191,716.32-287,613.36-67,144.80

Finding the Fourth Proportional to 191,716.32, 287,613.36 and 67,144.80

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Solution

The fourth proportional to 191,716.32, 287,613.36 and 67,144.80 is: 100,730.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,716.32 : 287,613.36 = 67,144.80 : x
  2. Step 2: Convert to fraction form
    191,716.32/287,613.36 = 67,144.80/x
  3. Step 3: Cross multiply
    191,716.32x = 287,613.36 × 67,144.80
  4. Step 4: Simplify right side
    191,716.32x = 19,311,741,534.53
  5. Step 5: Solve for x
    x = 19,311,741,534.53/191,716.32
  6. Step 6: Final answer
    x = 100,730.82

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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.