Home / 208,278.03-287,423.87-117,653.34

Finding the Fourth Proportional to 208,278.03, 287,423.87 and 117,653.34

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Solution

The fourth proportional to 208,278.03, 287,423.87 and 117,653.34 is: 162,361.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,278.03 : 287,423.87 = 117,653.34 : x
  2. Step 2: Convert to fraction form
    208,278.03/287,423.87 = 117,653.34/x
  3. Step 3: Cross multiply
    208,278.03x = 287,423.87 × 117,653.34
  4. Step 4: Simplify right side
    208,278.03x = 33,816,378,301.23
  5. Step 5: Solve for x
    x = 33,816,378,301.23/208,278.03
  6. Step 6: Final answer
    x = 162,361.72

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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.