Home / 129,231.54-178,313.33-75,506.18

Finding the Fourth Proportional to 129,231.54, 178,313.33 and 75,506.18

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Solution

The fourth proportional to 129,231.54, 178,313.33 and 75,506.18 is: 104,183.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,231.54 : 178,313.33 = 75,506.18 : x
  2. Step 2: Convert to fraction form
    129,231.54/178,313.33 = 75,506.18/x
  3. Step 3: Cross multiply
    129,231.54x = 178,313.33 × 75,506.18
  4. Step 4: Simplify right side
    129,231.54x = 13,463,757,688.58
  5. Step 5: Solve for x
    x = 13,463,757,688.58/129,231.54
  6. Step 6: Final answer
    x = 104,183.22

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1.5x scale

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.