Home / 138,929.46-208,476-96,268.38

Finding the Fourth Proportional to 138,929.46, 208,476 and 96,268.38

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Solution

The fourth proportional to 138,929.46, 208,476 and 96,268.38 is: 144,459.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,929.46 : 208,476 = 96,268.38 : x
  2. Step 2: Convert to fraction form
    138,929.46/208,476 = 96,268.38/x
  3. Step 3: Cross multiply
    138,929.46x = 208,476 × 96,268.38
  4. Step 4: Simplify right side
    138,929.46x = 20,069,646,788.88
  5. Step 5: Solve for x
    x = 20,069,646,788.88/138,929.46
  6. Step 6: Final answer
    x = 144,459.26

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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.