Home / 98,105.40-135,383.52-55,085.88

Finding the Fourth Proportional to 98,105.40, 135,383.52 and 55,085.88

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Solution

The fourth proportional to 98,105.40, 135,383.52 and 55,085.88 is: 76,017.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,105.40 : 135,383.52 = 55,085.88 : x
  2. Step 2: Convert to fraction form
    98,105.40/135,383.52 = 55,085.88/x
  3. Step 3: Cross multiply
    98,105.40x = 135,383.52 × 55,085.88
  4. Step 4: Simplify right side
    98,105.40x = 7,457,720,336.70
  5. Step 5: Solve for x
    x = 7,457,720,336.70/98,105.40
  6. Step 6: Final answer
    x = 76,017.43

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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.