Home / 130,147.51-179,622.83-82,405.30

Finding the Fourth Proportional to 130,147.51, 179,622.83 and 82,405.30

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Solution

The fourth proportional to 130,147.51, 179,622.83 and 82,405.30 is: 113,731.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,147.51 : 179,622.83 = 82,405.30 : x
  2. Step 2: Convert to fraction form
    130,147.51/179,622.83 = 82,405.30/x
  3. Step 3: Cross multiply
    130,147.51x = 179,622.83 × 82,405.30
  4. Step 4: Simplify right side
    130,147.51x = 14,801,873,193.00
  5. Step 5: Solve for x
    x = 14,801,873,193.00/130,147.51
  6. Step 6: Final answer
    x = 113,731.51

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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.