Home / 122,749.98-169,418.23-76,830.92

Finding the Fourth Proportional to 122,749.98, 169,418.23 and 76,830.92

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Solution

The fourth proportional to 122,749.98, 169,418.23 and 76,830.92 is: 106,041.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,749.98 : 169,418.23 = 76,830.92 : x
  2. Step 2: Convert to fraction form
    122,749.98/169,418.23 = 76,830.92/x
  3. Step 3: Cross multiply
    122,749.98x = 169,418.23 × 76,830.92
  4. Step 4: Simplify right side
    122,749.98x = 13,016,557,860.05
  5. Step 5: Solve for x
    x = 13,016,557,860.05/122,749.98
  6. Step 6: Final answer
    x = 106,041.22

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1.5x scale

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.