Home / 185,087.60-255,420.60-100,204.64

Finding the Fourth Proportional to 185,087.60, 255,420.60 and 100,204.64

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Solution

The fourth proportional to 185,087.60, 255,420.60 and 100,204.64 is: 138,282.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,087.60 : 255,420.60 = 100,204.64 : x
  2. Step 2: Convert to fraction form
    185,087.60/255,420.60 = 100,204.64/x
  3. Step 3: Cross multiply
    185,087.60x = 255,420.60 × 100,204.64
  4. Step 4: Simplify right side
    185,087.60x = 25,594,329,271.58
  5. Step 5: Solve for x
    x = 25,594,329,271.58/185,087.60
  6. Step 6: Final answer
    x = 138,282.25

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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.