Home / 109,916.81-164,704.96-76,248.31

Finding the Fourth Proportional to 109,916.81, 164,704.96 and 76,248.31

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Solution

The fourth proportional to 109,916.81, 164,704.96 and 76,248.31 is: 114,254.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,916.81 : 164,704.96 = 76,248.31 : x
  2. Step 2: Convert to fraction form
    109,916.81/164,704.96 = 76,248.31/x
  3. Step 3: Cross multiply
    109,916.81x = 164,704.96 × 76,248.31
  4. Step 4: Simplify right side
    109,916.81x = 12,558,474,025.09
  5. Step 5: Solve for x
    x = 12,558,474,025.09/109,916.81
  6. Step 6: Final answer
    x = 114,254.36

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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.