Home / 191,156.49-263,802.60-105,119.01

Finding the Fourth Proportional to 191,156.49, 263,802.60 and 105,119.01

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Solution

The fourth proportional to 191,156.49, 263,802.60 and 105,119.01 is: 145,067.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,156.49 : 263,802.60 = 105,119.01 : x
  2. Step 2: Convert to fraction form
    191,156.49/263,802.60 = 105,119.01/x
  3. Step 3: Cross multiply
    191,156.49x = 263,802.60 × 105,119.01
  4. Step 4: Simplify right side
    191,156.49x = 27,730,668,147.43
  5. Step 5: Solve for x
    x = 27,730,668,147.43/191,156.49
  6. Step 6: Final answer
    x = 145,067.89

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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.