Home / 208,369.08-287,501.76-117,720.36

Finding the Fourth Proportional to 208,369.08, 287,501.76 and 117,720.36

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Solution

The fourth proportional to 208,369.08, 287,501.76 and 117,720.36 is: 162,427.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,369.08 : 287,501.76 = 117,720.36 : x
  2. Step 2: Convert to fraction form
    208,369.08/287,501.76 = 117,720.36/x
  3. Step 3: Cross multiply
    208,369.08x = 287,501.76 × 117,720.36
  4. Step 4: Simplify right side
    208,369.08x = 33,844,810,687.83
  5. Step 5: Solve for x
    x = 33,844,810,687.83/208,369.08
  6. Step 6: Final answer
    x = 162,427.22

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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.