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Finding the Fourth Proportional to 110,354.37, 152,278.49 and 61,945.20

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Solution

The fourth proportional to 110,354.37, 152,278.49 and 61,945.20 is: 85,478.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,354.37 : 152,278.49 = 61,945.20 : x
  2. Step 2: Convert to fraction form
    110,354.37/152,278.49 = 61,945.20/x
  3. Step 3: Cross multiply
    110,354.37x = 152,278.49 × 61,945.20
  4. Step 4: Simplify right side
    110,354.37x = 9,432,921,518.75
  5. Step 5: Solve for x
    x = 9,432,921,518.75/110,354.37
  6. Step 6: Final answer
    x = 85,478.46

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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.