Home / 208,422.33-287,623.07-112,928.95

Finding the Fourth Proportional to 208,422.33, 287,623.07 and 112,928.95

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Solution

The fourth proportional to 208,422.33, 287,623.07 and 112,928.95 is: 155,842.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,422.33 : 287,623.07 = 112,928.95 : x
  2. Step 2: Convert to fraction form
    208,422.33/287,623.07 = 112,928.95/x
  3. Step 3: Cross multiply
    208,422.33x = 287,623.07 × 112,928.95
  4. Step 4: Simplify right side
    208,422.33x = 32,480,971,290.88
  5. Step 5: Solve for x
    x = 32,480,971,290.88/208,422.33
  6. Step 6: Final answer
    x = 155,842.09

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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.