Home / 115,359.15-159,195.36-64,368.75

Finding the Fourth Proportional to 115,359.15, 159,195.36 and 64,368.75

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Solution

The fourth proportional to 115,359.15, 159,195.36 and 64,368.75 is: 88,828.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,359.15 : 159,195.36 = 64,368.75 : x
  2. Step 2: Convert to fraction form
    115,359.15/159,195.36 = 64,368.75/x
  3. Step 3: Cross multiply
    115,359.15x = 159,195.36 × 64,368.75
  4. Step 4: Simplify right side
    115,359.15x = 10,247,206,329
  5. Step 5: Solve for x
    x = 10,247,206,329/115,359.15
  6. Step 6: Final answer
    x = 88,828.73

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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.