Home / 154,862.37-213,785.16-103,856.52

Finding the Fourth Proportional to 154,862.37, 213,785.16 and 103,856.52

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Solution

The fourth proportional to 154,862.37, 213,785.16 and 103,856.52 is: 143,372.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,862.37 : 213,785.16 = 103,856.52 : x
  2. Step 2: Convert to fraction form
    154,862.37/213,785.16 = 103,856.52/x
  3. Step 3: Cross multiply
    154,862.37x = 213,785.16 × 103,856.52
  4. Step 4: Simplify right side
    154,862.37x = 22,202,982,745.24
  5. Step 5: Solve for x
    x = 22,202,982,745.24/154,862.37
  6. Step 6: Final answer
    x = 143,372.36

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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.