Home / 208,119.09-287,204.33-112,625.79

Finding the Fourth Proportional to 208,119.09, 287,204.33 and 112,625.79

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Solution

The fourth proportional to 208,119.09, 287,204.33 and 112,625.79 is: 155,423.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,119.09 : 287,204.33 = 112,625.79 : x
  2. Step 2: Convert to fraction form
    208,119.09/287,204.33 = 112,625.79/x
  3. Step 3: Cross multiply
    208,119.09x = 287,204.33 × 112,625.79
  4. Step 4: Simplify right side
    208,119.09x = 32,346,613,994.54
  5. Step 5: Solve for x
    x = 32,346,613,994.54/208,119.09
  6. Step 6: Final answer
    x = 155,423.58

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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.