Home / 100,823.31-151,257.47-30,708.03

Finding the Fourth Proportional to 100,823.31, 151,257.47 and 30,708.03

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Solution

The fourth proportional to 100,823.31, 151,257.47 and 30,708.03 is: 46,068.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,823.31 : 151,257.47 = 30,708.03 : x
  2. Step 2: Convert to fraction form
    100,823.31/151,257.47 = 30,708.03/x
  3. Step 3: Cross multiply
    100,823.31x = 151,257.47 × 30,708.03
  4. Step 4: Simplify right side
    100,823.31x = 4,644,818,772.94
  5. Step 5: Solve for x
    x = 4,644,818,772.94/100,823.31
  6. Step 6: Final answer
    x = 46,068.90

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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.