Home / 185,079.60-255,409.53-100,196.64

Finding the Fourth Proportional to 185,079.60, 255,409.53 and 100,196.64

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Solution

The fourth proportional to 185,079.60, 255,409.53 and 100,196.64 is: 138,271.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,079.60 : 255,409.53 = 100,196.64 : x
  2. Step 2: Convert to fraction form
    185,079.60/255,409.53 = 100,196.64/x
  3. Step 3: Cross multiply
    185,079.60x = 255,409.53 × 100,196.64
  4. Step 4: Simplify right side
    185,079.60x = 25,591,176,729.98
  5. Step 5: Solve for x
    x = 25,591,176,729.98/185,079.60
  6. Step 6: Final answer
    x = 138,271.19

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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.