Home / 208,118.49-287,204.39-112,625.18

Finding the Fourth Proportional to 208,118.49, 287,204.39 and 112,625.18

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Solution

The fourth proportional to 208,118.49, 287,204.39 and 112,625.18 is: 155,423.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,118.49 : 287,204.39 = 112,625.18 : x
  2. Step 2: Convert to fraction form
    208,118.49/287,204.39 = 112,625.18/x
  3. Step 3: Cross multiply
    208,118.49x = 287,204.39 × 112,625.18
  4. Step 4: Simplify right side
    208,118.49x = 32,346,446,120.54
  5. Step 5: Solve for x
    x = 32,346,446,120.54/208,118.49
  6. Step 6: Final answer
    x = 155,423.22

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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.