Home / 128,006.88-191,993.46-38,047.67

Finding the Fourth Proportional to 128,006.88, 191,993.46 and 38,047.67

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Solution

The fourth proportional to 128,006.88, 191,993.46 and 38,047.67 is: 57,066.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,006.88 : 191,993.46 = 38,047.67 : x
  2. Step 2: Convert to fraction form
    128,006.88/191,993.46 = 38,047.67/x
  3. Step 3: Cross multiply
    128,006.88x = 191,993.46 × 38,047.67
  4. Step 4: Simplify right side
    128,006.88x = 7,304,904,097.98
  5. Step 5: Solve for x
    x = 7,304,904,097.98/128,006.88
  6. Step 6: Final answer
    x = 57,066.50

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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.