Home / 136,775.76-188,782.04-80,205.36

Finding the Fourth Proportional to 136,775.76, 188,782.04 and 80,205.36

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Solution

The fourth proportional to 136,775.76, 188,782.04 and 80,205.36 is: 110,701.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,775.76 : 188,782.04 = 80,205.36 : x
  2. Step 2: Convert to fraction form
    136,775.76/188,782.04 = 80,205.36/x
  3. Step 3: Cross multiply
    136,775.76x = 188,782.04 × 80,205.36
  4. Step 4: Simplify right side
    136,775.76x = 15,141,331,078.71
  5. Step 5: Solve for x
    x = 15,141,331,078.71/136,775.76
  6. Step 6: Final answer
    x = 110,701.86

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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.