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Finding the Fourth Proportional to 114,150.63, 157,678.38 and 87,620.97

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Solution

The fourth proportional to 114,150.63, 157,678.38 and 87,620.97 is: 121,032.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,150.63 : 157,678.38 = 87,620.97 : x
  2. Step 2: Convert to fraction form
    114,150.63/157,678.38 = 87,620.97/x
  3. Step 3: Cross multiply
    114,150.63x = 157,678.38 × 87,620.97
  4. Step 4: Simplify right side
    114,150.63x = 13,815,932,603.63
  5. Step 5: Solve for x
    x = 13,815,932,603.63/114,150.63
  6. Step 6: Final answer
    x = 121,032.47

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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.