Home / 114,178.89-157,619.75-66,414.81

Finding the Fourth Proportional to 114,178.89, 157,619.75 and 66,414.81

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Solution

The fourth proportional to 114,178.89, 157,619.75 and 66,414.81 is: 91,683.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,178.89 : 157,619.75 = 66,414.81 : x
  2. Step 2: Convert to fraction form
    114,178.89/157,619.75 = 66,414.81/x
  3. Step 3: Cross multiply
    114,178.89x = 157,619.75 × 66,414.81
  4. Step 4: Simplify right side
    114,178.89x = 10,468,285,416.42
  5. Step 5: Solve for x
    x = 10,468,285,416.42/114,178.89
  6. Step 6: Final answer
    x = 91,683.19

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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.