Home / 128,268.84-191,373.09-114,997.80

Finding the Fourth Proportional to 128,268.84, 191,373.09 and 114,997.80

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Solution

The fourth proportional to 128,268.84, 191,373.09 and 114,997.80 is: 171,573.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,268.84 : 191,373.09 = 114,997.80 : x
  2. Step 2: Convert to fraction form
    128,268.84/191,373.09 = 114,997.80/x
  3. Step 3: Cross multiply
    128,268.84x = 191,373.09 × 114,997.80
  4. Step 4: Simplify right side
    128,268.84x = 22,007,484,329.20
  5. Step 5: Solve for x
    x = 22,007,484,329.20/128,268.84
  6. Step 6: Final answer
    x = 171,573.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.