Home / 117,128.53-175,524.66-66,567.82

Finding the Fourth Proportional to 117,128.53, 175,524.66 and 66,567.82

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Solution

The fourth proportional to 117,128.53, 175,524.66 and 66,567.82 is: 99,756.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,128.53 : 175,524.66 = 66,567.82 : x
  2. Step 2: Convert to fraction form
    117,128.53/175,524.66 = 66,567.82/x
  3. Step 3: Cross multiply
    117,128.53x = 175,524.66 × 66,567.82
  4. Step 4: Simplify right side
    117,128.53x = 11,684,293,972.44
  5. Step 5: Solve for x
    x = 11,684,293,972.44/117,128.53
  6. Step 6: Final answer
    x = 99,756.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.