Home / 185,869.94-278,945.12-86,100.14

Finding the Fourth Proportional to 185,869.94, 278,945.12 and 86,100.14

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Solution

The fourth proportional to 185,869.94, 278,945.12 and 86,100.14 is: 129,215.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,869.94 : 278,945.12 = 86,100.14 : x
  2. Step 2: Convert to fraction form
    185,869.94/278,945.12 = 86,100.14/x
  3. Step 3: Cross multiply
    185,869.94x = 278,945.12 × 86,100.14
  4. Step 4: Simplify right side
    185,869.94x = 24,017,213,884.32
  5. Step 5: Solve for x
    x = 24,017,213,884.32/185,869.94
  6. Step 6: Final answer
    x = 129,215.16

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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.