Home / 130,974.06-180,765.88-77,272.22

Finding the Fourth Proportional to 130,974.06, 180,765.88 and 77,272.22

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Solution

The fourth proportional to 130,974.06, 180,765.88 and 77,272.22 is: 106,648.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,974.06 : 180,765.88 = 77,272.22 : x
  2. Step 2: Convert to fraction form
    130,974.06/180,765.88 = 77,272.22/x
  3. Step 3: Cross multiply
    130,974.06x = 180,765.88 × 77,272.22
  4. Step 4: Simplify right side
    130,974.06x = 13,968,180,847.85
  5. Step 5: Solve for x
    x = 13,968,180,847.85/130,974.06
  6. Step 6: Final answer
    x = 106,648.45

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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.