Home / 247,967.06-342,190.74-139,071.38

Finding the Fourth Proportional to 247,967.06, 342,190.74 and 139,071.38

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Solution

The fourth proportional to 247,967.06, 342,190.74 and 139,071.38 is: 191,916.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,967.06 : 342,190.74 = 139,071.38 : x
  2. Step 2: Convert to fraction form
    247,967.06/342,190.74 = 139,071.38/x
  3. Step 3: Cross multiply
    247,967.06x = 342,190.74 × 139,071.38
  4. Step 4: Simplify right side
    247,967.06x = 47,588,936,724.07
  5. Step 5: Solve for x
    x = 47,588,936,724.07/247,967.06
  6. Step 6: Final answer
    x = 191,916.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.