Home / 208,341.36-287,322.10-136,694.16

Finding the Fourth Proportional to 208,341.36, 287,322.10 and 136,694.16

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Solution

The fourth proportional to 208,341.36, 287,322.10 and 136,694.16 is: 188,513.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,341.36 : 287,322.10 = 136,694.16 : x
  2. Step 2: Convert to fraction form
    208,341.36/287,322.10 = 136,694.16/x
  3. Step 3: Cross multiply
    208,341.36x = 287,322.10 × 136,694.16
  4. Step 4: Simplify right side
    208,341.36x = 39,275,253,108.94
  5. Step 5: Solve for x
    x = 39,275,253,108.94/208,341.36
  6. Step 6: Final answer
    x = 188,513.95

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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.