Home / 100,947.84-151,436.40-30,818.04

Finding the Fourth Proportional to 100,947.84, 151,436.40 and 30,818.04

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Solution

The fourth proportional to 100,947.84, 151,436.40 and 30,818.04 is: 46,231.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,947.84 : 151,436.40 = 30,818.04 : x
  2. Step 2: Convert to fraction form
    100,947.84/151,436.40 = 30,818.04/x
  3. Step 3: Cross multiply
    100,947.84x = 151,436.40 × 30,818.04
  4. Step 4: Simplify right side
    100,947.84x = 4,666,973,032.66
  5. Step 5: Solve for x
    x = 4,666,973,032.66/100,947.84
  6. Step 6: Final answer
    x = 46,231.53

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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.