Home / 115,828.09-159,857.84-64,860.23

Finding the Fourth Proportional to 115,828.09, 159,857.84 and 64,860.23

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Solution

The fourth proportional to 115,828.09, 159,857.84 and 64,860.23 is: 89,515.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,828.09 : 159,857.84 = 64,860.23 : x
  2. Step 2: Convert to fraction form
    115,828.09/159,857.84 = 64,860.23/x
  3. Step 3: Cross multiply
    115,828.09x = 159,857.84 × 64,860.23
  4. Step 4: Simplify right side
    115,828.09x = 10,368,416,269.70
  5. Step 5: Solve for x
    x = 10,368,416,269.70/115,828.09
  6. Step 6: Final answer
    x = 89,515.56

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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.