Home / 113,436.45-170,100-76,038.75

Finding the Fourth Proportional to 113,436.45, 170,100 and 76,038.75

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Solution

The fourth proportional to 113,436.45, 170,100 and 76,038.75 is: 114,021.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,436.45 : 170,100 = 76,038.75 : x
  2. Step 2: Convert to fraction form
    113,436.45/170,100 = 76,038.75/x
  3. Step 3: Cross multiply
    113,436.45x = 170,100 × 76,038.75
  4. Step 4: Simplify right side
    113,436.45x = 12,934,191,375
  5. Step 5: Solve for x
    x = 12,934,191,375/113,436.45
  6. Step 6: Final answer
    x = 114,021.48

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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.