Home / 115,450.54-159,320.21-64,464.12

Finding the Fourth Proportional to 115,450.54, 159,320.21 and 64,464.12

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Solution

The fourth proportional to 115,450.54, 159,320.21 and 64,464.12 is: 88,959.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,450.54 : 159,320.21 = 64,464.12 : x
  2. Step 2: Convert to fraction form
    115,450.54/159,320.21 = 64,464.12/x
  3. Step 3: Cross multiply
    115,450.54x = 159,320.21 × 64,464.12
  4. Step 4: Simplify right side
    115,450.54x = 10,270,436,813.54
  5. Step 5: Solve for x
    x = 10,270,436,813.54/115,450.54
  6. Step 6: Final answer
    x = 88,959.63

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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.