Home / 130,600.15-195,900.26-86,216.52

Finding the Fourth Proportional to 130,600.15, 195,900.26 and 86,216.52

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Solution

The fourth proportional to 130,600.15, 195,900.26 and 86,216.52 is: 129,324.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,600.15 : 195,900.26 = 86,216.52 : x
  2. Step 2: Convert to fraction form
    130,600.15/195,900.26 = 86,216.52/x
  3. Step 3: Cross multiply
    130,600.15x = 195,900.26 × 86,216.52
  4. Step 4: Simplify right side
    130,600.15x = 16,889,838,899.84
  5. Step 5: Solve for x
    x = 16,889,838,899.84/130,600.15
  6. Step 6: Final answer
    x = 129,324.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.