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Finding the Fourth Proportional to 145,417.08, 200,672.67 and 80,884.92

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Solution

The fourth proportional to 145,417.08, 200,672.67 and 80,884.92 is: 111,619.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,417.08 : 200,672.67 = 80,884.92 : x
  2. Step 2: Convert to fraction form
    145,417.08/200,672.67 = 80,884.92/x
  3. Step 3: Cross multiply
    145,417.08x = 200,672.67 × 80,884.92
  4. Step 4: Simplify right side
    145,417.08x = 16,231,392,859.14
  5. Step 5: Solve for x
    x = 16,231,392,859.14/145,417.08
  6. Step 6: Final answer
    x = 111,619.58

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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.