Home / 130,620.62-180,258.43-73,272.65

Finding the Fourth Proportional to 130,620.62, 180,258.43 and 73,272.65

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Solution

The fourth proportional to 130,620.62, 180,258.43 and 73,272.65 is: 101,117.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,620.62 : 180,258.43 = 73,272.65 : x
  2. Step 2: Convert to fraction form
    130,620.62/180,258.43 = 73,272.65/x
  3. Step 3: Cross multiply
    130,620.62x = 180,258.43 × 73,272.65
  4. Step 4: Simplify right side
    130,620.62x = 13,208,012,850.94
  5. Step 5: Solve for x
    x = 13,208,012,850.94/130,620.62
  6. Step 6: Final answer
    x = 101,117.36

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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.