Home / 92,745.16-139,135.04-42,147.76

Finding the Fourth Proportional to 92,745.16, 139,135.04 and 42,147.76

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Solution

The fourth proportional to 92,745.16, 139,135.04 and 42,147.76 is: 63,229.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,745.16 : 139,135.04 = 42,147.76 : x
  2. Step 2: Convert to fraction form
    92,745.16/139,135.04 = 42,147.76/x
  3. Step 3: Cross multiply
    92,745.16x = 139,135.04 × 42,147.76
  4. Step 4: Simplify right side
    92,745.16x = 5,864,230,273.51
  5. Step 5: Solve for x
    x = 5,864,230,273.51/92,745.16
  6. Step 6: Final answer
    x = 63,229.50

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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.