Home / 118,723.54-163,831.26-65,009.20

Finding the Fourth Proportional to 118,723.54, 163,831.26 and 65,009.20

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Solution

The fourth proportional to 118,723.54, 163,831.26 and 65,009.20 is: 89,708.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,723.54 : 163,831.26 = 65,009.20 : x
  2. Step 2: Convert to fraction form
    118,723.54/163,831.26 = 65,009.20/x
  3. Step 3: Cross multiply
    118,723.54x = 163,831.26 × 65,009.20
  4. Step 4: Simplify right side
    118,723.54x = 10,650,539,147.59
  5. Step 5: Solve for x
    x = 10,650,539,147.59/118,723.54
  6. Step 6: Final answer
    x = 89,708.74

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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.