Home / 114,544-158,139.84-74,869.12

Finding the Fourth Proportional to 114,544, 158,139.84 and 74,869.12

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Solution

The fourth proportional to 114,544, 158,139.84 and 74,869.12 is: 103,364.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,544 : 158,139.84 = 74,869.12 : x
  2. Step 2: Convert to fraction form
    114,544/158,139.84 = 74,869.12/x
  3. Step 3: Cross multiply
    114,544x = 158,139.84 × 74,869.12
  4. Step 4: Simplify right side
    114,544x = 11,839,790,657.74
  5. Step 5: Solve for x
    x = 11,839,790,657.74/114,544
  6. Step 6: Final answer
    x = 103,364.56

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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.