Home / 136,724.75-188,690.89-75,483.11

Finding the Fourth Proportional to 136,724.75, 188,690.89 and 75,483.11

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Solution

The fourth proportional to 136,724.75, 188,690.89 and 75,483.11 is: 104,172.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,724.75 : 188,690.89 = 75,483.11 : x
  2. Step 2: Convert to fraction form
    136,724.75/188,690.89 = 75,483.11/x
  3. Step 3: Cross multiply
    136,724.75x = 188,690.89 × 75,483.11
  4. Step 4: Simplify right side
    136,724.75x = 14,242,975,205.87
  5. Step 5: Solve for x
    x = 14,242,975,205.87/136,724.75
  6. Step 6: Final answer
    x = 104,172.62

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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.