Home / 208,042.23-287,105.64-117,392.91

Finding the Fourth Proportional to 208,042.23, 287,105.64 and 117,392.91

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Solution

The fourth proportional to 208,042.23, 287,105.64 and 117,392.91 is: 162,006.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,042.23 : 287,105.64 = 117,392.91 : x
  2. Step 2: Convert to fraction form
    208,042.23/287,105.64 = 117,392.91/x
  3. Step 3: Cross multiply
    208,042.23x = 287,105.64 × 117,392.91
  4. Step 4: Simplify right side
    208,042.23x = 33,704,166,557.01
  5. Step 5: Solve for x
    x = 33,704,166,557.01/208,042.23
  6. Step 6: Final answer
    x = 162,006.37

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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.