Home / 130,900.44-180,704.46-87,365.07

Finding the Fourth Proportional to 130,900.44, 180,704.46 and 87,365.07

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Solution

The fourth proportional to 130,900.44, 180,704.46 and 87,365.07 is: 120,605.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,900.44 : 180,704.46 = 87,365.07 : x
  2. Step 2: Convert to fraction form
    130,900.44/180,704.46 = 87,365.07/x
  3. Step 3: Cross multiply
    130,900.44x = 180,704.46 × 87,365.07
  4. Step 4: Simplify right side
    130,900.44x = 15,787,257,797.21
  5. Step 5: Solve for x
    x = 15,787,257,797.21/130,900.44
  6. Step 6: Final answer
    x = 120,605.08

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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.