Home / 103,141.27-154,712.04-28,262.05

Finding the Fourth Proportional to 103,141.27, 154,712.04 and 28,262.05

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Solution

The fourth proportional to 103,141.27, 154,712.04 and 28,262.05 is: 42,393.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,141.27 : 154,712.04 = 28,262.05 : x
  2. Step 2: Convert to fraction form
    103,141.27/154,712.04 = 28,262.05/x
  3. Step 3: Cross multiply
    103,141.27x = 154,712.04 × 28,262.05
  4. Step 4: Simplify right side
    103,141.27x = 4,372,479,410.08
  5. Step 5: Solve for x
    x = 4,372,479,410.08/103,141.27
  6. Step 6: Final answer
    x = 42,393.11

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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.