Home / 208,045.23-287,109.78-117,395.91

Finding the Fourth Proportional to 208,045.23, 287,109.78 and 117,395.91

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Solution

The fourth proportional to 208,045.23, 287,109.78 and 117,395.91 is: 162,010.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,045.23 : 287,109.78 = 117,395.91 : x
  2. Step 2: Convert to fraction form
    208,045.23/287,109.78 = 117,395.91/x
  3. Step 3: Cross multiply
    208,045.23x = 287,109.78 × 117,395.91
  4. Step 4: Simplify right side
    208,045.23x = 33,705,513,893.00
  5. Step 5: Solve for x
    x = 33,705,513,893.00/208,045.23
  6. Step 6: Final answer
    x = 162,010.51

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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.