Home / 208,694.10-287,886.78-127,047.18

Finding the Fourth Proportional to 208,694.10, 287,886.78 and 127,047.18

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Solution

The fourth proportional to 208,694.10, 287,886.78 and 127,047.18 is: 175,257.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,694.10 : 287,886.78 = 127,047.18 : x
  2. Step 2: Convert to fraction form
    208,694.10/287,886.78 = 127,047.18/x
  3. Step 3: Cross multiply
    208,694.10x = 287,886.78 × 127,047.18
  4. Step 4: Simplify right side
    208,694.10x = 36,575,203,558.28
  5. Step 5: Solve for x
    x = 36,575,203,558.28/208,694.10
  6. Step 6: Final answer
    x = 175,257.49

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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.