Home / 149,178.78-223,768.18-122,828.16

Finding the Fourth Proportional to 149,178.78, 223,768.18 and 122,828.16

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Solution

The fourth proportional to 149,178.78, 223,768.18 and 122,828.16 is: 184,242.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,178.78 : 223,768.18 = 122,828.16 : x
  2. Step 2: Convert to fraction form
    149,178.78/223,768.18 = 122,828.16/x
  3. Step 3: Cross multiply
    149,178.78x = 223,768.18 × 122,828.16
  4. Step 4: Simplify right side
    149,178.78x = 27,485,033,815.95
  5. Step 5: Solve for x
    x = 27,485,033,815.95/149,178.78
  6. Step 6: Final answer
    x = 184,242.25

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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.