Home / 147,442.48-203,450.10-87,015.64

Finding the Fourth Proportional to 147,442.48, 203,450.10 and 87,015.64

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Solution

The fourth proportional to 147,442.48, 203,450.10 and 87,015.64 is: 120,069.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,442.48 : 203,450.10 = 87,015.64 : x
  2. Step 2: Convert to fraction form
    147,442.48/203,450.10 = 87,015.64/x
  3. Step 3: Cross multiply
    147,442.48x = 203,450.10 × 87,015.64
  4. Step 4: Simplify right side
    147,442.48x = 17,703,340,659.56
  5. Step 5: Solve for x
    x = 17,703,340,659.56/147,442.48
  6. Step 6: Final answer
    x = 120,069.47

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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.