Home / 145,181.81-200,382.90-80,673.18

Finding the Fourth Proportional to 145,181.81, 200,382.90 and 80,673.18

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Solution

The fourth proportional to 145,181.81, 200,382.90 and 80,673.18 is: 111,346.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,181.81 : 200,382.90 = 80,673.18 : x
  2. Step 2: Convert to fraction form
    145,181.81/200,382.90 = 80,673.18/x
  3. Step 3: Cross multiply
    145,181.81x = 200,382.90 × 80,673.18
  4. Step 4: Simplify right side
    145,181.81x = 16,165,524,706.66
  5. Step 5: Solve for x
    x = 16,165,524,706.66/145,181.81
  6. Step 6: Final answer
    x = 111,346.76

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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.