Home / 208,056.20-287,132.73-117,420.09

Finding the Fourth Proportional to 208,056.20, 287,132.73 and 117,420.09

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Solution

The fourth proportional to 208,056.20, 287,132.73 and 117,420.09 is: 162,048.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,056.20 : 287,132.73 = 117,420.09 : x
  2. Step 2: Convert to fraction form
    208,056.20/287,132.73 = 117,420.09/x
  3. Step 3: Cross multiply
    208,056.20x = 287,132.73 × 117,420.09
  4. Step 4: Simplify right side
    208,056.20x = 33,715,150,998.55
  5. Step 5: Solve for x
    x = 33,715,150,998.55/208,056.20
  6. Step 6: Final answer
    x = 162,048.29

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1.5x scale

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.