Home / 115,942.59-159,964.45-64,948.43

Finding the Fourth Proportional to 115,942.59, 159,964.45 and 64,948.43

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Solution

The fourth proportional to 115,942.59, 159,964.45 and 64,948.43 is: 89,608.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,942.59 : 159,964.45 = 64,948.43 : x
  2. Step 2: Convert to fraction form
    115,942.59/159,964.45 = 64,948.43/x
  3. Step 3: Cross multiply
    115,942.59x = 159,964.45 × 64,948.43
  4. Step 4: Simplify right side
    115,942.59x = 10,389,438,758.75
  5. Step 5: Solve for x
    x = 10,389,438,758.75/115,942.59
  6. Step 6: Final answer
    x = 89,608.48

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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.