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Finding the Fourth Proportional to 136,099.65, 187,817.34 and 75,668.38

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Solution

The fourth proportional to 136,099.65, 187,817.34 and 75,668.38 is: 104,422.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,099.65 : 187,817.34 = 75,668.38 : x
  2. Step 2: Convert to fraction form
    136,099.65/187,817.34 = 75,668.38/x
  3. Step 3: Cross multiply
    136,099.65x = 187,817.34 × 75,668.38
  4. Step 4: Simplify right side
    136,099.65x = 14,211,833,853.71
  5. Step 5: Solve for x
    x = 14,211,833,853.71/136,099.65
  6. Step 6: Final answer
    x = 104,422.27

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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.