Home / 114,429.24-157,905.84-66,690.36

Finding the Fourth Proportional to 114,429.24, 157,905.84 and 66,690.36

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Solution

The fourth proportional to 114,429.24, 157,905.84 and 66,690.36 is: 92,028.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,429.24 : 157,905.84 = 66,690.36 : x
  2. Step 2: Convert to fraction form
    114,429.24/157,905.84 = 66,690.36/x
  3. Step 3: Cross multiply
    114,429.24x = 157,905.84 × 66,690.36
  4. Step 4: Simplify right side
    114,429.24x = 10,530,797,315.70
  5. Step 5: Solve for x
    x = 10,530,797,315.70/114,429.24
  6. Step 6: Final answer
    x = 92,028.90

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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.