Home / 208,586.03-287,850.93-122,548.61

Finding the Fourth Proportional to 208,586.03, 287,850.93 and 122,548.61

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Solution

The fourth proportional to 208,586.03, 287,850.93 and 122,548.61 is: 169,118.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,586.03 : 287,850.93 = 122,548.61 : x
  2. Step 2: Convert to fraction form
    208,586.03/287,850.93 = 122,548.61/x
  3. Step 3: Cross multiply
    208,586.03x = 287,850.93 × 122,548.61
  4. Step 4: Simplify right side
    208,586.03x = 35,275,731,358.71
  5. Step 5: Solve for x
    x = 35,275,731,358.71/208,586.03
  6. Step 6: Final answer
    x = 169,118.38

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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.