Home / 208,208.14-287,324.85-112,712.74

Finding the Fourth Proportional to 208,208.14, 287,324.85 and 112,712.74

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Solution

The fourth proportional to 208,208.14, 287,324.85 and 112,712.74 is: 155,542.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,208.14 : 287,324.85 = 112,712.74 : x
  2. Step 2: Convert to fraction form
    208,208.14/287,324.85 = 112,712.74/x
  3. Step 3: Cross multiply
    208,208.14x = 287,324.85 × 112,712.74
  4. Step 4: Simplify right side
    208,208.14x = 32,385,171,113.59
  5. Step 5: Solve for x
    x = 32,385,171,113.59/208,208.14
  6. Step 6: Final answer
    x = 155,542.29

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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.