Home / 100,053.09-149,947.30-52,571.13

Finding the Fourth Proportional to 100,053.09, 149,947.30 and 52,571.13

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Solution

The fourth proportional to 100,053.09, 149,947.30 and 52,571.13 is: 78,787.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,053.09 : 149,947.30 = 52,571.13 : x
  2. Step 2: Convert to fraction form
    100,053.09/149,947.30 = 52,571.13/x
  3. Step 3: Cross multiply
    100,053.09x = 149,947.30 × 52,571.13
  4. Step 4: Simplify right side
    100,053.09x = 7,882,898,504.86
  5. Step 5: Solve for x
    x = 7,882,898,504.86/100,053.09
  6. Step 6: Final answer
    x = 78,787.16

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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.