Home / 186,899.40-280,349.10-112,249.80

Finding the Fourth Proportional to 186,899.40, 280,349.10 and 112,249.80

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Solution

The fourth proportional to 186,899.40, 280,349.10 and 112,249.80 is: 168,374.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,899.40 : 280,349.10 = 112,249.80 : x
  2. Step 2: Convert to fraction form
    186,899.40/280,349.10 = 112,249.80/x
  3. Step 3: Cross multiply
    186,899.40x = 280,349.10 × 112,249.80
  4. Step 4: Simplify right side
    186,899.40x = 31,469,130,405.18
  5. Step 5: Solve for x
    x = 31,469,130,405.18/186,899.40
  6. Step 6: Final answer
    x = 168,374.70

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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.