Home / 102,738.90-154,108.34-27,856.02

Finding the Fourth Proportional to 102,738.90, 154,108.34 and 27,856.02

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Solution

The fourth proportional to 102,738.90, 154,108.34 and 27,856.02 is: 41,784.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,738.90 : 154,108.34 = 27,856.02 : x
  2. Step 2: Convert to fraction form
    102,738.90/154,108.34 = 27,856.02/x
  3. Step 3: Cross multiply
    102,738.90x = 154,108.34 × 27,856.02
  4. Step 4: Simplify right side
    102,738.90x = 4,292,845,001.21
  5. Step 5: Solve for x
    x = 4,292,845,001.21/102,738.90
  6. Step 6: Final answer
    x = 41,784.03

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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.