Home / 165,916.32-248,913.36-72,448.80

Finding the Fourth Proportional to 165,916.32, 248,913.36 and 72,448.80

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Solution

The fourth proportional to 165,916.32, 248,913.36 and 72,448.80 is: 108,690.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,916.32 : 248,913.36 = 72,448.80 : x
  2. Step 2: Convert to fraction form
    165,916.32/248,913.36 = 72,448.80/x
  3. Step 3: Cross multiply
    165,916.32x = 248,913.36 × 72,448.80
  4. Step 4: Simplify right side
    165,916.32x = 18,033,474,235.97
  5. Step 5: Solve for x
    x = 18,033,474,235.97/165,916.32
  6. Step 6: Final answer
    x = 108,690.18

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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.