Home / 221,826.86-306,268.88-131,211.93

Finding the Fourth Proportional to 221,826.86, 306,268.88 and 131,211.93

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Solution

The fourth proportional to 221,826.86, 306,268.88 and 131,211.93 is: 181,159.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,826.86 : 306,268.88 = 131,211.93 : x
  2. Step 2: Convert to fraction form
    221,826.86/306,268.88 = 131,211.93/x
  3. Step 3: Cross multiply
    221,826.86x = 306,268.88 × 131,211.93
  4. Step 4: Simplify right side
    221,826.86x = 40,186,130,187.68
  5. Step 5: Solve for x
    x = 40,186,130,187.68/221,826.86
  6. Step 6: Final answer
    x = 181,159.90

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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.