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Finding the Fourth Proportional to 110,668.55, 152,736.32 and 67,639.19

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Solution

The fourth proportional to 110,668.55, 152,736.32 and 67,639.19 is: 93,350.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,668.55 : 152,736.32 = 67,639.19 : x
  2. Step 2: Convert to fraction form
    110,668.55/152,736.32 = 67,639.19/x
  3. Step 3: Cross multiply
    110,668.55x = 152,736.32 × 67,639.19
  4. Step 4: Simplify right side
    110,668.55x = 10,330,960,968.38
  5. Step 5: Solve for x
    x = 10,330,960,968.38/110,668.55
  6. Step 6: Final answer
    x = 93,350.47

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1.5x scale

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.