Home / 102,442.61-141,309.87-79,745.67

Finding the Fourth Proportional to 102,442.61, 141,309.87 and 79,745.67

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Solution

The fourth proportional to 102,442.61, 141,309.87 and 79,745.67 is: 110,001.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,442.61 : 141,309.87 = 79,745.67 : x
  2. Step 2: Convert to fraction form
    102,442.61/141,309.87 = 79,745.67/x
  3. Step 3: Cross multiply
    102,442.61x = 141,309.87 × 79,745.67
  4. Step 4: Simplify right side
    102,442.61x = 11,268,850,260.76
  5. Step 5: Solve for x
    x = 11,268,850,260.76/102,442.61
  6. Step 6: Final answer
    x = 110,001.60

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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.