Home / 108,134.16-162,236.02-51,978.36

Finding the Fourth Proportional to 108,134.16, 162,236.02 and 51,978.36

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Solution

The fourth proportional to 108,134.16, 162,236.02 and 51,978.36 is: 77,984.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,134.16 : 162,236.02 = 51,978.36 : x
  2. Step 2: Convert to fraction form
    108,134.16/162,236.02 = 51,978.36/x
  3. Step 3: Cross multiply
    108,134.16x = 162,236.02 × 51,978.36
  4. Step 4: Simplify right side
    108,134.16x = 8,432,762,252.53
  5. Step 5: Solve for x
    x = 8,432,762,252.53/108,134.16
  6. Step 6: Final answer
    x = 77,984.26

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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.