Home / 107,720.98-148,333.97-105,331.22

Finding the Fourth Proportional to 107,720.98, 148,333.97 and 105,331.22

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Solution

The fourth proportional to 107,720.98, 148,333.97 and 105,331.22 is: 145,043.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,720.98 : 148,333.97 = 105,331.22 : x
  2. Step 2: Convert to fraction form
    107,720.98/148,333.97 = 105,331.22/x
  3. Step 3: Cross multiply
    107,720.98x = 148,333.97 × 105,331.22
  4. Step 4: Simplify right side
    107,720.98x = 15,624,198,027.54
  5. Step 5: Solve for x
    x = 15,624,198,027.54/107,720.98
  6. Step 6: Final answer
    x = 145,043.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.