Home / 101,040.07-151,571.45-82,478.11

Finding the Fourth Proportional to 101,040.07, 151,571.45 and 82,478.11

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Solution

The fourth proportional to 101,040.07, 151,571.45 and 82,478.11 is: 123,726.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,040.07 : 151,571.45 = 82,478.11 : x
  2. Step 2: Convert to fraction form
    101,040.07/151,571.45 = 82,478.11/x
  3. Step 3: Cross multiply
    101,040.07x = 151,571.45 × 82,478.11
  4. Step 4: Simplify right side
    101,040.07x = 12,501,326,725.96
  5. Step 5: Solve for x
    x = 12,501,326,725.96/101,040.07
  6. Step 6: Final answer
    x = 123,726.43

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1.5x scale

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.