Home / 133,410.47-184,106.38-72,981.09

Finding the Fourth Proportional to 133,410.47, 184,106.38 and 72,981.09

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Solution

The fourth proportional to 133,410.47, 184,106.38 and 72,981.09 is: 100,713.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,410.47 : 184,106.38 = 72,981.09 : x
  2. Step 2: Convert to fraction form
    133,410.47/184,106.38 = 72,981.09/x
  3. Step 3: Cross multiply
    133,410.47x = 184,106.38 × 72,981.09
  4. Step 4: Simplify right side
    133,410.47x = 13,436,284,288.35
  5. Step 5: Solve for x
    x = 13,436,284,288.35/133,410.47
  6. Step 6: Final answer
    x = 100,713.87

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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.