Home / 133,400.07-199,928.12-99,857.43

Finding the Fourth Proportional to 133,400.07, 199,928.12 and 99,857.43

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Solution

The fourth proportional to 133,400.07, 199,928.12 and 99,857.43 is: 149,657.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,400.07 : 199,928.12 = 99,857.43 : x
  2. Step 2: Convert to fraction form
    133,400.07/199,928.12 = 99,857.43/x
  3. Step 3: Cross multiply
    133,400.07x = 199,928.12 × 99,857.43
  4. Step 4: Simplify right side
    133,400.07x = 19,964,307,748.64
  5. Step 5: Solve for x
    x = 19,964,307,748.64/133,400.07
  6. Step 6: Final answer
    x = 149,657.40

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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.