Home / 208,162.44-287,253.14-122,109.53

Finding the Fourth Proportional to 208,162.44, 287,253.14 and 122,109.53

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Solution

The fourth proportional to 208,162.44, 287,253.14 and 122,109.53 is: 168,504.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,162.44 : 287,253.14 = 122,109.53 : x
  2. Step 2: Convert to fraction form
    208,162.44/287,253.14 = 122,109.53/x
  3. Step 3: Cross multiply
    208,162.44x = 287,253.14 × 122,109.53
  4. Step 4: Simplify right side
    208,162.44x = 35,076,343,869.61
  5. Step 5: Solve for x
    x = 35,076,343,869.61/208,162.44
  6. Step 6: Final answer
    x = 168,504.67

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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.