Home / 135,166.64-186,522.42-74,733.76

Finding the Fourth Proportional to 135,166.64, 186,522.42 and 74,733.76

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Solution

The fourth proportional to 135,166.64, 186,522.42 and 74,733.76 is: 103,128.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,166.64 : 186,522.42 = 74,733.76 : x
  2. Step 2: Convert to fraction form
    135,166.64/186,522.42 = 74,733.76/x
  3. Step 3: Cross multiply
    135,166.64x = 186,522.42 × 74,733.76
  4. Step 4: Simplify right side
    135,166.64x = 13,939,521,770.90
  5. Step 5: Solve for x
    x = 13,939,521,770.90/135,166.64
  6. Step 6: Final answer
    x = 103,128.42

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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.