Home / 113,827.76-170,603.40-80,557.64

Finding the Fourth Proportional to 113,827.76, 170,603.40 and 80,557.64

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Solution

The fourth proportional to 113,827.76, 170,603.40 and 80,557.64 is: 120,738.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,827.76 : 170,603.40 = 80,557.64 : x
  2. Step 2: Convert to fraction form
    113,827.76/170,603.40 = 80,557.64/x
  3. Step 3: Cross multiply
    113,827.76x = 170,603.40 × 80,557.64
  4. Step 4: Simplify right side
    113,827.76x = 13,743,407,279.98
  5. Step 5: Solve for x
    x = 13,743,407,279.98/113,827.76
  6. Step 6: Final answer
    x = 120,738.63

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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.