Home / 208,044.72-287,109.08-117,395.40

Finding the Fourth Proportional to 208,044.72, 287,109.08 and 117,395.40

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Solution

The fourth proportional to 208,044.72, 287,109.08 and 117,395.40 is: 162,009.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,044.72 : 287,109.08 = 117,395.40 : x
  2. Step 2: Convert to fraction form
    208,044.72/287,109.08 = 117,395.40/x
  3. Step 3: Cross multiply
    208,044.72x = 287,109.08 × 117,395.40
  4. Step 4: Simplify right side
    208,044.72x = 33,705,285,290.23
  5. Step 5: Solve for x
    x = 33,705,285,290.23/208,044.72
  6. Step 6: Final answer
    x = 162,009.81

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1.5x scale

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.