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Finding the Fourth Proportional to 114,885.84, 158,532 and 66,479.40

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Solution

The fourth proportional to 114,885.84, 158,532 and 66,479.40 is: 91,735.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,885.84 : 158,532 = 66,479.40 : x
  2. Step 2: Convert to fraction form
    114,885.84/158,532 = 66,479.40/x
  3. Step 3: Cross multiply
    114,885.84x = 158,532 × 66,479.40
  4. Step 4: Simplify right side
    114,885.84x = 10,539,112,240.80
  5. Step 5: Solve for x
    x = 10,539,112,240.80/114,885.84
  6. Step 6: Final answer
    x = 91,735.52

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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.