Home / 135,166.90-186,522.78-74,733.91

Finding the Fourth Proportional to 135,166.90, 186,522.78 and 74,733.91

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Solution

The fourth proportional to 135,166.90, 186,522.78 and 74,733.91 is: 103,128.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,166.90 : 186,522.78 = 74,733.91 : x
  2. Step 2: Convert to fraction form
    135,166.90/186,522.78 = 74,733.91/x
  3. Step 3: Cross multiply
    135,166.90x = 186,522.78 × 74,733.91
  4. Step 4: Simplify right side
    135,166.90x = 13,939,576,396.77
  5. Step 5: Solve for x
    x = 13,939,576,396.77/135,166.90
  6. Step 6: Final answer
    x = 103,128.63

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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.