Home / 165,640.30-248,454.57-53,328.13

Finding the Fourth Proportional to 165,640.30, 248,454.57 and 53,328.13

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Solution

The fourth proportional to 165,640.30, 248,454.57 and 53,328.13 is: 79,990.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,640.30 : 248,454.57 = 53,328.13 : x
  2. Step 2: Convert to fraction form
    165,640.30/248,454.57 = 53,328.13/x
  3. Step 3: Cross multiply
    165,640.30x = 248,454.57 × 53,328.13
  4. Step 4: Simplify right side
    165,640.30x = 13,249,617,608.05
  5. Step 5: Solve for x
    x = 13,249,617,608.05/165,640.30
  6. Step 6: Final answer
    x = 79,990.30

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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.