Home / 101,979.35-152,916.51-45,771.28

Finding the Fourth Proportional to 101,979.35, 152,916.51 and 45,771.28

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Solution

The fourth proportional to 101,979.35, 152,916.51 and 45,771.28 is: 68,633.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,979.35 : 152,916.51 = 45,771.28 : x
  2. Step 2: Convert to fraction form
    101,979.35/152,916.51 = 45,771.28/x
  3. Step 3: Cross multiply
    101,979.35x = 152,916.51 × 45,771.28
  4. Step 4: Simplify right side
    101,979.35x = 6,999,183,927.72
  5. Step 5: Solve for x
    x = 6,999,183,927.72/101,979.35
  6. Step 6: Final answer
    x = 68,633.34

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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.