Home / 139,895.82-193,056.09-76,233.60

Finding the Fourth Proportional to 139,895.82, 193,056.09 and 76,233.60

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Solution

The fourth proportional to 139,895.82, 193,056.09 and 76,233.60 is: 105,202.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,895.82 : 193,056.09 = 76,233.60 : x
  2. Step 2: Convert to fraction form
    139,895.82/193,056.09 = 76,233.60/x
  3. Step 3: Cross multiply
    139,895.82x = 193,056.09 × 76,233.60
  4. Step 4: Simplify right side
    139,895.82x = 14,717,360,742.62
  5. Step 5: Solve for x
    x = 14,717,360,742.62/139,895.82
  6. Step 6: Final answer
    x = 105,202.29

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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.