Home / 210,072.26-315,006.06-69,783.50

Finding the Fourth Proportional to 210,072.26, 315,006.06 and 69,783.50

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Solution

The fourth proportional to 210,072.26, 315,006.06 and 69,783.50 is: 104,641.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,072.26 : 315,006.06 = 69,783.50 : x
  2. Step 2: Convert to fraction form
    210,072.26/315,006.06 = 69,783.50/x
  3. Step 3: Cross multiply
    210,072.26x = 315,006.06 × 69,783.50
  4. Step 4: Simplify right side
    210,072.26x = 21,982,225,388.01
  5. Step 5: Solve for x
    x = 21,982,225,388.01/210,072.26
  6. Step 6: Final answer
    x = 104,641.26

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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.