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Finding the Fourth Proportional to 98,630.89, 136,107.90 and 55,610.01

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Solution

The fourth proportional to 98,630.89, 136,107.90 and 55,610.01 is: 76,740.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,630.89 : 136,107.90 = 55,610.01 : x
  2. Step 2: Convert to fraction form
    98,630.89/136,107.90 = 55,610.01/x
  3. Step 3: Cross multiply
    98,630.89x = 136,107.90 × 55,610.01
  4. Step 4: Simplify right side
    98,630.89x = 7,568,961,680.08
  5. Step 5: Solve for x
    x = 7,568,961,680.08/98,630.89
  6. Step 6: Final answer
    x = 76,740.28

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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.