Home / 138,134.08-190,652.25-89,795.89

Finding the Fourth Proportional to 138,134.08, 190,652.25 and 89,795.89

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Solution

The fourth proportional to 138,134.08, 190,652.25 and 89,795.89 is: 123,936.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,134.08 : 190,652.25 = 89,795.89 : x
  2. Step 2: Convert to fraction form
    138,134.08/190,652.25 = 89,795.89/x
  3. Step 3: Cross multiply
    138,134.08x = 190,652.25 × 89,795.89
  4. Step 4: Simplify right side
    138,134.08x = 17,119,788,469.25
  5. Step 5: Solve for x
    x = 17,119,788,469.25/138,134.08
  6. Step 6: Final answer
    x = 123,936.02

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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.