Home / 100,977.11-151,392.75-30,818.15

Finding the Fourth Proportional to 100,977.11, 151,392.75 and 30,818.15

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Solution

The fourth proportional to 100,977.11, 151,392.75 and 30,818.15 is: 46,204.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,977.11 : 151,392.75 = 30,818.15 : x
  2. Step 2: Convert to fraction form
    100,977.11/151,392.75 = 30,818.15/x
  3. Step 3: Cross multiply
    100,977.11x = 151,392.75 × 30,818.15
  4. Step 4: Simplify right side
    100,977.11x = 4,665,643,721.45
  5. Step 5: Solve for x
    x = 4,665,643,721.45/100,977.11
  6. Step 6: Final answer
    x = 46,204.97

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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.