Home / 115,845.35-159,866.97-64,860.23

Finding the Fourth Proportional to 115,845.35, 159,866.97 and 64,860.23

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Solution

The fourth proportional to 115,845.35, 159,866.97 and 64,860.23 is: 89,507.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,845.35 : 159,866.97 = 64,860.23 : x
  2. Step 2: Convert to fraction form
    115,845.35/159,866.97 = 64,860.23/x
  3. Step 3: Cross multiply
    115,845.35x = 159,866.97 × 64,860.23
  4. Step 4: Simplify right side
    115,845.35x = 10,369,008,443.60
  5. Step 5: Solve for x
    x = 10,369,008,443.60/115,845.35
  6. Step 6: Final answer
    x = 89,507.33

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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.