Home / 115,509.08-159,403.86-67,763.24

Finding the Fourth Proportional to 115,509.08, 159,403.86 and 67,763.24

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Solution

The fourth proportional to 115,509.08, 159,403.86 and 67,763.24 is: 93,514.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,509.08 : 159,403.86 = 67,763.24 : x
  2. Step 2: Convert to fraction form
    115,509.08/159,403.86 = 67,763.24/x
  3. Step 3: Cross multiply
    115,509.08x = 159,403.86 × 67,763.24
  4. Step 4: Simplify right side
    115,509.08x = 10,801,722,022.11
  5. Step 5: Solve for x
    x = 10,801,722,022.11/115,509.08
  6. Step 6: Final answer
    x = 93,514.05

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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.