Home / 191,213.08-263,880.48-105,175.72

Finding the Fourth Proportional to 191,213.08, 263,880.48 and 105,175.72

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Solution

The fourth proportional to 191,213.08, 263,880.48 and 105,175.72 is: 145,146.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,213.08 : 263,880.48 = 105,175.72 : x
  2. Step 2: Convert to fraction form
    191,213.08/263,880.48 = 105,175.72/x
  3. Step 3: Cross multiply
    191,213.08x = 263,880.48 × 105,175.72
  4. Step 4: Simplify right side
    191,213.08x = 27,753,819,477.95
  5. Step 5: Solve for x
    x = 27,753,819,477.95/191,213.08
  6. Step 6: Final answer
    x = 145,146.03

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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.