Home / 115,338.24-159,139.60-70,015.12

Finding the Fourth Proportional to 115,338.24, 159,139.60 and 70,015.12

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Solution

The fourth proportional to 115,338.24, 159,139.60 and 70,015.12 is: 96,604.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,338.24 : 159,139.60 = 70,015.12 : x
  2. Step 2: Convert to fraction form
    115,338.24/159,139.60 = 70,015.12/x
  3. Step 3: Cross multiply
    115,338.24x = 159,139.60 × 70,015.12
  4. Step 4: Simplify right side
    115,338.24x = 11,142,178,190.75
  5. Step 5: Solve for x
    x = 11,142,178,190.75/115,338.24
  6. Step 6: Final answer
    x = 96,604.37

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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.