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Finding the Fourth Proportional to 168,812.72, 232,742.40 and 105,036.56

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Solution

The fourth proportional to 168,812.72, 232,742.40 and 105,036.56 is: 144,814.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,812.72 : 232,742.40 = 105,036.56 : x
  2. Step 2: Convert to fraction form
    168,812.72/232,742.40 = 105,036.56/x
  3. Step 3: Cross multiply
    168,812.72x = 232,742.40 × 105,036.56
  4. Step 4: Simplify right side
    168,812.72x = 24,446,461,062.14
  5. Step 5: Solve for x
    x = 24,446,461,062.14/168,812.72
  6. Step 6: Final answer
    x = 144,814.09

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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.