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Finding the Fourth Proportional to 201,133.69, 301,827.81 and 112,445.37

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Solution

The fourth proportional to 201,133.69, 301,827.81 and 112,445.37 is: 168,739.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,133.69 : 301,827.81 = 112,445.37 : x
  2. Step 2: Convert to fraction form
    201,133.69/301,827.81 = 112,445.37/x
  3. Step 3: Cross multiply
    201,133.69x = 301,827.81 × 112,445.37
  4. Step 4: Simplify right side
    201,133.69x = 33,939,139,771.74
  5. Step 5: Solve for x
    x = 33,939,139,771.74/201,133.69
  6. Step 6: Final answer
    x = 168,739.21

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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.