Home / 208,377.36-287,371.80-136,730.16

Finding the Fourth Proportional to 208,377.36, 287,371.80 and 136,730.16

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Solution

The fourth proportional to 208,377.36, 287,371.80 and 136,730.16 is: 188,563.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,377.36 : 287,371.80 = 136,730.16 : x
  2. Step 2: Convert to fraction form
    208,377.36/287,371.80 = 136,730.16/x
  3. Step 3: Cross multiply
    208,377.36x = 287,371.80 × 136,730.16
  4. Step 4: Simplify right side
    208,377.36x = 39,292,392,193.49
  5. Step 5: Solve for x
    x = 39,292,392,193.49/208,377.36
  6. Step 6: Final answer
    x = 188,563.63

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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.