Home / 208,345.36-287,327.62-136,698.16

Finding the Fourth Proportional to 208,345.36, 287,327.62 and 136,698.16

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Solution

The fourth proportional to 208,345.36, 287,327.62 and 136,698.16 is: 188,519.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,345.36 : 287,327.62 = 136,698.16 : x
  2. Step 2: Convert to fraction form
    208,345.36/287,327.62 = 136,698.16/x
  3. Step 3: Cross multiply
    208,345.36x = 287,327.62 × 136,698.16
  4. Step 4: Simplify right side
    208,345.36x = 39,277,156,971.18
  5. Step 5: Solve for x
    x = 39,277,156,971.18/208,345.36
  6. Step 6: Final answer
    x = 188,519.47

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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.