Home / 103,201.12-154,801.85-28,322.29

Finding the Fourth Proportional to 103,201.12, 154,801.85 and 28,322.29

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Solution

The fourth proportional to 103,201.12, 154,801.85 and 28,322.29 is: 42,483.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,201.12 : 154,801.85 = 28,322.29 : x
  2. Step 2: Convert to fraction form
    103,201.12/154,801.85 = 28,322.29/x
  3. Step 3: Cross multiply
    103,201.12x = 154,801.85 × 28,322.29
  4. Step 4: Simplify right side
    103,201.12x = 4,384,342,888.24
  5. Step 5: Solve for x
    x = 4,384,342,888.24/103,201.12
  6. Step 6: Final answer
    x = 42,483.48

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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.