Home / 185,079.13-255,410.03-100,196.19

Finding the Fourth Proportional to 185,079.13, 255,410.03 and 100,196.19

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Solution

The fourth proportional to 185,079.13, 255,410.03 and 100,196.19 is: 138,271.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,079.13 : 255,410.03 = 100,196.19 : x
  2. Step 2: Convert to fraction form
    185,079.13/255,410.03 = 100,196.19/x
  3. Step 3: Cross multiply
    185,079.13x = 255,410.03 × 100,196.19
  4. Step 4: Simplify right side
    185,079.13x = 25,591,111,893.79
  5. Step 5: Solve for x
    x = 25,591,111,893.79/185,079.13
  6. Step 6: Final answer
    x = 138,271.19

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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.