Home / 130,512.94-180,194.73-100,244.25

Finding the Fourth Proportional to 130,512.94, 180,194.73 and 100,244.25

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Solution

The fourth proportional to 130,512.94, 180,194.73 and 100,244.25 is: 138,403.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,512.94 : 180,194.73 = 100,244.25 : x
  2. Step 2: Convert to fraction form
    130,512.94/180,194.73 = 100,244.25/x
  3. Step 3: Cross multiply
    130,512.94x = 180,194.73 × 100,244.25
  4. Step 4: Simplify right side
    130,512.94x = 18,063,485,186.89
  5. Step 5: Solve for x
    x = 18,063,485,186.89/130,512.94
  6. Step 6: Final answer
    x = 138,403.79

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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.