Home / 98,127.40-135,416.46-55,686.64

Finding the Fourth Proportional to 98,127.40, 135,416.46 and 55,686.64

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Solution

The fourth proportional to 98,127.40, 135,416.46 and 55,686.64 is: 76,847.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,127.40 : 135,416.46 = 55,686.64 : x
  2. Step 2: Convert to fraction form
    98,127.40/135,416.46 = 55,686.64/x
  3. Step 3: Cross multiply
    98,127.40x = 135,416.46 × 55,686.64
  4. Step 4: Simplify right side
    98,127.40x = 7,540,887,658.09
  5. Step 5: Solve for x
    x = 7,540,887,658.09/98,127.40
  6. Step 6: Final answer
    x = 76,847.93

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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.