Home / 109,952.06-151,655.60-100,906.64

Finding the Fourth Proportional to 109,952.06, 151,655.60 and 100,906.64

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Solution

The fourth proportional to 109,952.06, 151,655.60 and 100,906.64 is: 139,179.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,952.06 : 151,655.60 = 100,906.64 : x
  2. Step 2: Convert to fraction form
    109,952.06/151,655.60 = 100,906.64/x
  3. Step 3: Cross multiply
    109,952.06x = 151,655.60 × 100,906.64
  4. Step 4: Simplify right side
    109,952.06x = 15,303,056,951.05
  5. Step 5: Solve for x
    x = 15,303,056,951.05/109,952.06
  6. Step 6: Final answer
    x = 139,179.36

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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.