Home / 208,099.22-287,177.69-112,605.92

Finding the Fourth Proportional to 208,099.22, 287,177.69 and 112,605.92

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Solution

The fourth proportional to 208,099.22, 287,177.69 and 112,605.92 is: 155,396.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,099.22 : 287,177.69 = 112,605.92 : x
  2. Step 2: Convert to fraction form
    208,099.22/287,177.69 = 112,605.92/x
  3. Step 3: Cross multiply
    208,099.22x = 287,177.69 × 112,605.92
  4. Step 4: Simplify right side
    208,099.22x = 32,337,905,987.01
  5. Step 5: Solve for x
    x = 32,337,905,987.01/208,099.22
  6. Step 6: Final answer
    x = 155,396.58

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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.