Home / 115,867.43-159,912.14-64,899.63

Finding the Fourth Proportional to 115,867.43, 159,912.14 and 64,899.63

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Solution

The fourth proportional to 115,867.43, 159,912.14 and 64,899.63 is: 89,569.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,867.43 : 159,912.14 = 64,899.63 : x
  2. Step 2: Convert to fraction form
    115,867.43/159,912.14 = 64,899.63/x
  3. Step 3: Cross multiply
    115,867.43x = 159,912.14 × 64,899.63
  4. Step 4: Simplify right side
    115,867.43x = 10,378,238,394.01
  5. Step 5: Solve for x
    x = 10,378,238,394.01/115,867.43
  6. Step 6: Final answer
    x = 89,569.94

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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.