Home / 108,876.72-163,325.40-42,321.99

Finding the Fourth Proportional to 108,876.72, 163,325.40 and 42,321.99

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Solution

The fourth proportional to 108,876.72, 163,325.40 and 42,321.99 is: 63,487.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,876.72 : 163,325.40 = 42,321.99 : x
  2. Step 2: Convert to fraction form
    108,876.72/163,325.40 = 42,321.99/x
  3. Step 3: Cross multiply
    108,876.72x = 163,325.40 × 42,321.99
  4. Step 4: Simplify right side
    108,876.72x = 6,912,255,945.55
  5. Step 5: Solve for x
    x = 6,912,255,945.55/108,876.72
  6. Step 6: Final answer
    x = 63,487.00

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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.