Home / 208,112.02-287,163.69-126,397.75

Finding the Fourth Proportional to 208,112.02, 287,163.69 and 126,397.75

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Solution

The fourth proportional to 208,112.02, 287,163.69 and 126,397.75 is: 174,410.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,112.02 : 287,163.69 = 126,397.75 : x
  2. Step 2: Convert to fraction form
    208,112.02/287,163.69 = 126,397.75/x
  3. Step 3: Cross multiply
    208,112.02x = 287,163.69 × 126,397.75
  4. Step 4: Simplify right side
    208,112.02x = 36,296,844,835.83
  5. Step 5: Solve for x
    x = 36,296,844,835.83/208,112.02
  6. Step 6: Final answer
    x = 174,410.14

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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.