Home / 208,427.56-287,635.38-127,899.58

Finding the Fourth Proportional to 208,427.56, 287,635.38 and 127,899.58

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Solution

The fourth proportional to 208,427.56, 287,635.38 and 127,899.58 is: 176,504.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,427.56 : 287,635.38 = 127,899.58 : x
  2. Step 2: Convert to fraction form
    208,427.56/287,635.38 = 127,899.58/x
  3. Step 3: Cross multiply
    208,427.56x = 287,635.38 × 127,899.58
  4. Step 4: Simplify right side
    208,427.56x = 36,788,444,295.14
  5. Step 5: Solve for x
    x = 36,788,444,295.14/208,427.56
  6. Step 6: Final answer
    x = 176,504.70

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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.