Home / 102,780.51-154,137.96-32,643.42

Finding the Fourth Proportional to 102,780.51, 154,137.96 and 32,643.42

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Solution

The fourth proportional to 102,780.51, 154,137.96 and 32,643.42 is: 48,954.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,780.51 : 154,137.96 = 32,643.42 : x
  2. Step 2: Convert to fraction form
    102,780.51/154,137.96 = 32,643.42/x
  3. Step 3: Cross multiply
    102,780.51x = 154,137.96 × 32,643.42
  4. Step 4: Simplify right side
    102,780.51x = 5,031,590,166.22
  5. Step 5: Solve for x
    x = 5,031,590,166.22/102,780.51
  6. Step 6: Final answer
    x = 48,954.71

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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.