Home / 115,730.78-173,610-40,835.43

Finding the Fourth Proportional to 115,730.78, 173,610 and 40,835.43

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Solution

The fourth proportional to 115,730.78, 173,610 and 40,835.43 is: 61,258.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,730.78 : 173,610 = 40,835.43 : x
  2. Step 2: Convert to fraction form
    115,730.78/173,610 = 40,835.43/x
  3. Step 3: Cross multiply
    115,730.78x = 173,610 × 40,835.43
  4. Step 4: Simplify right side
    115,730.78x = 7,089,439,002.30
  5. Step 5: Solve for x
    x = 7,089,439,002.30/115,730.78
  6. Step 6: Final answer
    x = 61,258.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.