Home / 196,400.31-294,619.49-78,045.13

Finding the Fourth Proportional to 196,400.31, 294,619.49 and 78,045.13

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Solution

The fourth proportional to 196,400.31, 294,619.49 and 78,045.13 is: 117,075.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,400.31 : 294,619.49 = 78,045.13 : x
  2. Step 2: Convert to fraction form
    196,400.31/294,619.49 = 78,045.13/x
  3. Step 3: Cross multiply
    196,400.31x = 294,619.49 × 78,045.13
  4. Step 4: Simplify right side
    196,400.31x = 22,993,616,397.58
  5. Step 5: Solve for x
    x = 22,993,616,397.58/196,400.31
  6. Step 6: Final answer
    x = 117,075.26

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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.