Home / 122,812.06-169,479.45-68,363.37

Finding the Fourth Proportional to 122,812.06, 169,479.45 and 68,363.37

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Solution

The fourth proportional to 122,812.06, 169,479.45 and 68,363.37 is: 94,340.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,812.06 : 169,479.45 = 68,363.37 : x
  2. Step 2: Convert to fraction form
    122,812.06/169,479.45 = 68,363.37/x
  3. Step 3: Cross multiply
    122,812.06x = 169,479.45 × 68,363.37
  4. Step 4: Simplify right side
    122,812.06x = 11,586,186,135.90
  5. Step 5: Solve for x
    x = 11,586,186,135.90/122,812.06
  6. Step 6: Final answer
    x = 94,340.78

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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.