Home / 122,690.07-169,311.29-68,975.32

Finding the Fourth Proportional to 122,690.07, 169,311.29 and 68,975.32

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Solution

The fourth proportional to 122,690.07, 169,311.29 and 68,975.32 is: 95,185.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,690.07 : 169,311.29 = 68,975.32 : x
  2. Step 2: Convert to fraction form
    122,690.07/169,311.29 = 68,975.32/x
  3. Step 3: Cross multiply
    122,690.07x = 169,311.29 × 68,975.32
  4. Step 4: Simplify right side
    122,690.07x = 11,678,300,407.36
  5. Step 5: Solve for x
    x = 11,678,300,407.36/122,690.07
  6. Step 6: Final answer
    x = 95,185.38

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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.