Home / 109,916.60-164,858.70-31,038.80

Finding the Fourth Proportional to 109,916.60, 164,858.70 and 31,038.80

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Solution

The fourth proportional to 109,916.60, 164,858.70 and 31,038.80 is: 46,553.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,916.60 : 164,858.70 = 31,038.80 : x
  2. Step 2: Convert to fraction form
    109,916.60/164,858.70 = 31,038.80/x
  3. Step 3: Cross multiply
    109,916.60x = 164,858.70 × 31,038.80
  4. Step 4: Simplify right side
    109,916.60x = 5,117,016,217.56
  5. Step 5: Solve for x
    x = 5,117,016,217.56/109,916.60
  6. Step 6: Final answer
    x = 46,553.63

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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.