Home / 101,280.09-152,015.46-51,395.97

Finding the Fourth Proportional to 101,280.09, 152,015.46 and 51,395.97

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Solution

The fourth proportional to 101,280.09, 152,015.46 and 51,395.97 is: 77,142.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,280.09 : 152,015.46 = 51,395.97 : x
  2. Step 2: Convert to fraction form
    101,280.09/152,015.46 = 51,395.97/x
  3. Step 3: Cross multiply
    101,280.09x = 152,015.46 × 51,395.97
  4. Step 4: Simplify right side
    101,280.09x = 7,812,982,021.70
  5. Step 5: Solve for x
    x = 7,812,982,021.70/101,280.09
  6. Step 6: Final answer
    x = 77,142.33

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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.