Home / 129,683.76-178,964.96-73,095.14

Finding the Fourth Proportional to 129,683.76, 178,964.96 and 73,095.14

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Solution

The fourth proportional to 129,683.76, 178,964.96 and 73,095.14 is: 100,872.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,683.76 : 178,964.96 = 73,095.14 : x
  2. Step 2: Convert to fraction form
    129,683.76/178,964.96 = 73,095.14/x
  3. Step 3: Cross multiply
    129,683.76x = 178,964.96 × 73,095.14
  4. Step 4: Simplify right side
    129,683.76x = 13,081,467,993.41
  5. Step 5: Solve for x
    x = 13,081,467,993.41/129,683.76
  6. Step 6: Final answer
    x = 100,872.06

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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.