Home / 272,190.06-408,368.08-139,163.72

Finding the Fourth Proportional to 272,190.06, 408,368.08 and 139,163.72

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Solution

The fourth proportional to 272,190.06, 408,368.08 and 139,163.72 is: 208,788.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,190.06 : 408,368.08 = 139,163.72 : x
  2. Step 2: Convert to fraction form
    272,190.06/408,368.08 = 139,163.72/x
  3. Step 3: Cross multiply
    272,190.06x = 408,368.08 × 139,163.72
  4. Step 4: Simplify right side
    272,190.06x = 56,830,021,142.06
  5. Step 5: Solve for x
    x = 56,830,021,142.06/272,190.06
  6. Step 6: Final answer
    x = 208,788.01

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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.