Home / 208,565.22-287,816.25-117,919.62

Finding the Fourth Proportional to 208,565.22, 287,816.25 and 117,919.62

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Solution

The fourth proportional to 208,565.22, 287,816.25 and 117,919.62 is: 162,726.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,565.22 : 287,816.25 = 117,919.62 : x
  2. Step 2: Convert to fraction form
    208,565.22/287,816.25 = 117,919.62/x
  3. Step 3: Cross multiply
    208,565.22x = 287,816.25 × 117,919.62
  4. Step 4: Simplify right side
    208,565.22x = 33,939,182,829.83
  5. Step 5: Solve for x
    x = 33,939,182,829.83/208,565.22
  6. Step 6: Final answer
    x = 162,726.95

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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.