Home / 127,755.64-191,803.03-109,155.21

Finding the Fourth Proportional to 127,755.64, 191,803.03 and 109,155.21

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Solution

The fourth proportional to 127,755.64, 191,803.03 and 109,155.21 is: 163,877.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,755.64 : 191,803.03 = 109,155.21 : x
  2. Step 2: Convert to fraction form
    127,755.64/191,803.03 = 109,155.21/x
  3. Step 3: Cross multiply
    127,755.64x = 191,803.03 × 109,155.21
  4. Step 4: Simplify right side
    127,755.64x = 20,936,298,993.00
  5. Step 5: Solve for x
    x = 20,936,298,993.00/127,755.64
  6. Step 6: Final answer
    x = 163,877.69

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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.