Home / 99,830.10-149,745.64-40,666.34

Finding the Fourth Proportional to 99,830.10, 149,745.64 and 40,666.34

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Solution

The fourth proportional to 99,830.10, 149,745.64 and 40,666.34 is: 60,999.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,830.10 : 149,745.64 = 40,666.34 : x
  2. Step 2: Convert to fraction form
    99,830.10/149,745.64 = 40,666.34/x
  3. Step 3: Cross multiply
    99,830.10x = 149,745.64 × 40,666.34
  4. Step 4: Simplify right side
    99,830.10x = 6,089,607,109.76
  5. Step 5: Solve for x
    x = 6,089,607,109.76/99,830.10
  6. Step 6: Final answer
    x = 60,999.71

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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.