Home / 108,724.51-162,929.37-74,955.87

Finding the Fourth Proportional to 108,724.51, 162,929.37 and 74,955.87

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Solution

The fourth proportional to 108,724.51, 162,929.37 and 74,955.87 is: 112,325.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,724.51 : 162,929.37 = 74,955.87 : x
  2. Step 2: Convert to fraction form
    108,724.51/162,929.37 = 74,955.87/x
  3. Step 3: Cross multiply
    108,724.51x = 162,929.37 × 74,955.87
  4. Step 4: Simplify right side
    108,724.51x = 12,212,512,676.90
  5. Step 5: Solve for x
    x = 12,212,512,676.90/108,724.51
  6. Step 6: Final answer
    x = 112,325.30

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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.