Home / 151,276.50-208,761.57-87,634.80

Finding the Fourth Proportional to 151,276.50, 208,761.57 and 87,634.80

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Solution

The fourth proportional to 151,276.50, 208,761.57 and 87,634.80 is: 120,936.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,276.50 : 208,761.57 = 87,634.80 : x
  2. Step 2: Convert to fraction form
    151,276.50/208,761.57 = 87,634.80/x
  3. Step 3: Cross multiply
    151,276.50x = 208,761.57 × 87,634.80
  4. Step 4: Simplify right side
    151,276.50x = 18,294,778,434.64
  5. Step 5: Solve for x
    x = 18,294,778,434.64/151,276.50
  6. Step 6: Final answer
    x = 120,936.02

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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.