Home / 108,087.12-162,053.01-51,129.45

Finding the Fourth Proportional to 108,087.12, 162,053.01 and 51,129.45

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Solution

The fourth proportional to 108,087.12, 162,053.01 and 51,129.45 is: 76,657.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,087.12 : 162,053.01 = 51,129.45 : x
  2. Step 2: Convert to fraction form
    108,087.12/162,053.01 = 51,129.45/x
  3. Step 3: Cross multiply
    108,087.12x = 162,053.01 × 51,129.45
  4. Step 4: Simplify right side
    108,087.12x = 8,285,681,272.14
  5. Step 5: Solve for x
    x = 8,285,681,272.14/108,087.12
  6. Step 6: Final answer
    x = 76,657.43

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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.