Home / 122,802.63-184,138.82-75,439.38

Finding the Fourth Proportional to 122,802.63, 184,138.82 and 75,439.38

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Solution

The fourth proportional to 122,802.63, 184,138.82 and 75,439.38 is: 113,119.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,802.63 : 184,138.82 = 75,439.38 : x
  2. Step 2: Convert to fraction form
    122,802.63/184,138.82 = 75,439.38/x
  3. Step 3: Cross multiply
    122,802.63x = 184,138.82 × 75,439.38
  4. Step 4: Simplify right side
    122,802.63x = 13,891,317,457.28
  5. Step 5: Solve for x
    x = 13,891,317,457.28/122,802.63
  6. Step 6: Final answer
    x = 113,119.05

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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.