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Finding the Fourth Proportional to 151,300.48, 208,763.02 and 87,634.48

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Solution

The fourth proportional to 151,300.48, 208,763.02 and 87,634.48 is: 120,917.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,300.48 : 208,763.02 = 87,634.48 : x
  2. Step 2: Convert to fraction form
    151,300.48/208,763.02 = 87,634.48/x
  3. Step 3: Cross multiply
    151,300.48x = 208,763.02 × 87,634.48
  4. Step 4: Simplify right side
    151,300.48x = 18,294,838,700.93
  5. Step 5: Solve for x
    x = 18,294,838,700.93/151,300.48
  6. Step 6: Final answer
    x = 120,917.25

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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.