Home / 109,346.72-163,916.40-53,877.92

Finding the Fourth Proportional to 109,346.72, 163,916.40 and 53,877.92

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Solution

The fourth proportional to 109,346.72, 163,916.40 and 53,877.92 is: 80,765.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,346.72 : 163,916.40 = 53,877.92 : x
  2. Step 2: Convert to fraction form
    109,346.72/163,916.40 = 53,877.92/x
  3. Step 3: Cross multiply
    109,346.72x = 163,916.40 × 53,877.92
  4. Step 4: Simplify right side
    109,346.72x = 8,831,474,685.89
  5. Step 5: Solve for x
    x = 8,831,474,685.89/109,346.72
  6. Step 6: Final answer
    x = 80,765.79

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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.