Home / 208,203.89-287,321.99-112,710.35

Finding the Fourth Proportional to 208,203.89, 287,321.99 and 112,710.35

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Solution

The fourth proportional to 208,203.89, 287,321.99 and 112,710.35 is: 155,540.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,203.89 : 287,321.99 = 112,710.35 : x
  2. Step 2: Convert to fraction form
    208,203.89/287,321.99 = 112,710.35/x
  3. Step 3: Cross multiply
    208,203.89x = 287,321.99 × 112,710.35
  4. Step 4: Simplify right side
    208,203.89x = 32,384,162,210.35
  5. Step 5: Solve for x
    x = 32,384,162,210.35/208,203.89
  6. Step 6: Final answer
    x = 155,540.62

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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.