Home / 154,466.30-231,699.45-121,288.70

Finding the Fourth Proportional to 154,466.30, 231,699.45 and 121,288.70

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Solution

The fourth proportional to 154,466.30, 231,699.45 and 121,288.70 is: 181,933.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,466.30 : 231,699.45 = 121,288.70 : x
  2. Step 2: Convert to fraction form
    154,466.30/231,699.45 = 121,288.70/x
  3. Step 3: Cross multiply
    154,466.30x = 231,699.45 × 121,288.70
  4. Step 4: Simplify right side
    154,466.30x = 28,102,525,081.22
  5. Step 5: Solve for x
    x = 28,102,525,081.22/154,466.30
  6. Step 6: Final answer
    x = 181,933.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.