Home / 108,873.18-150,233.40-61,131.78

Finding the Fourth Proportional to 108,873.18, 150,233.40 and 61,131.78

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Solution

The fourth proportional to 108,873.18, 150,233.40 and 61,131.78 is: 84,355.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,873.18 : 150,233.40 = 61,131.78 : x
  2. Step 2: Convert to fraction form
    108,873.18/150,233.40 = 61,131.78/x
  3. Step 3: Cross multiply
    108,873.18x = 150,233.40 × 61,131.78
  4. Step 4: Simplify right side
    108,873.18x = 9,184,035,157.45
  5. Step 5: Solve for x
    x = 9,184,035,157.45/108,873.18
  6. Step 6: Final answer
    x = 84,355.35

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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.