Home / 103,087.52-154,631.38-28,202.12

Finding the Fourth Proportional to 103,087.52, 154,631.38 and 28,202.12

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Solution

The fourth proportional to 103,087.52, 154,631.38 and 28,202.12 is: 42,303.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,087.52 : 154,631.38 = 28,202.12 : x
  2. Step 2: Convert to fraction form
    103,087.52/154,631.38 = 28,202.12/x
  3. Step 3: Cross multiply
    103,087.52x = 154,631.38 × 28,202.12
  4. Step 4: Simplify right side
    103,087.52x = 4,360,932,734.53
  5. Step 5: Solve for x
    x = 4,360,932,734.53/103,087.52
  6. Step 6: Final answer
    x = 42,303.21

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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.