Home / 102,742.49-154,129.13-36,170.89

Finding the Fourth Proportional to 102,742.49, 154,129.13 and 36,170.89

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Solution

The fourth proportional to 102,742.49, 154,129.13 and 36,170.89 is: 54,261.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,742.49 : 154,129.13 = 36,170.89 : x
  2. Step 2: Convert to fraction form
    102,742.49/154,129.13 = 36,170.89/x
  3. Step 3: Cross multiply
    102,742.49x = 154,129.13 × 36,170.89
  4. Step 4: Simplify right side
    102,742.49x = 5,574,987,376.49
  5. Step 5: Solve for x
    x = 5,574,987,376.49/102,742.49
  6. Step 6: Final answer
    x = 54,261.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.