Home / 154,581.36-213,273.86-86,589.15

Finding the Fourth Proportional to 154,581.36, 213,273.86 and 86,589.15

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Solution

The fourth proportional to 154,581.36, 213,273.86 and 86,589.15 is: 119,465.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,581.36 : 213,273.86 = 86,589.15 : x
  2. Step 2: Convert to fraction form
    154,581.36/213,273.86 = 86,589.15/x
  3. Step 3: Cross multiply
    154,581.36x = 213,273.86 × 86,589.15
  4. Step 4: Simplify right side
    154,581.36x = 18,467,201,821.67
  5. Step 5: Solve for x
    x = 18,467,201,821.67/154,581.36
  6. Step 6: Final answer
    x = 119,465.90

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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.