Home / 122,831.07-169,516.85-69,112.95

Finding the Fourth Proportional to 122,831.07, 169,516.85 and 69,112.95

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Solution

The fourth proportional to 122,831.07, 169,516.85 and 69,112.95 is: 95,381.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,831.07 : 169,516.85 = 69,112.95 : x
  2. Step 2: Convert to fraction form
    122,831.07/169,516.85 = 69,112.95/x
  3. Step 3: Cross multiply
    122,831.07x = 169,516.85 × 69,112.95
  4. Step 4: Simplify right side
    122,831.07x = 11,715,809,232.64
  5. Step 5: Solve for x
    x = 11,715,809,232.64/122,831.07
  6. Step 6: Final answer
    x = 95,381.48

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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.