Home / 315,891.23-473,786.72-102,664.19

Finding the Fourth Proportional to 315,891.23, 473,786.72 and 102,664.19

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Solution

The fourth proportional to 315,891.23, 473,786.72 and 102,664.19 is: 153,980.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,891.23 : 473,786.72 = 102,664.19 : x
  2. Step 2: Convert to fraction form
    315,891.23/473,786.72 = 102,664.19/x
  3. Step 3: Cross multiply
    315,891.23x = 473,786.72 × 102,664.19
  4. Step 4: Simplify right side
    315,891.23x = 48,640,930,897.69
  5. Step 5: Solve for x
    x = 48,640,930,897.69/315,891.23
  6. Step 6: Final answer
    x = 153,980.00

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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.