Home / 115,450.89-159,320.66-64,464.47

Finding the Fourth Proportional to 115,450.89, 159,320.66 and 64,464.47

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Solution

The fourth proportional to 115,450.89, 159,320.66 and 64,464.47 is: 88,960.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,450.89 : 159,320.66 = 64,464.47 : x
  2. Step 2: Convert to fraction form
    115,450.89/159,320.66 = 64,464.47/x
  3. Step 3: Cross multiply
    115,450.89x = 159,320.66 × 64,464.47
  4. Step 4: Simplify right side
    115,450.89x = 10,270,520,788.02
  5. Step 5: Solve for x
    x = 10,270,520,788.02/115,450.89
  6. Step 6: Final answer
    x = 88,960.08

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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.