Home / 208,824.64-288,417.24-137,523.36

Finding the Fourth Proportional to 208,824.64, 288,417.24 and 137,523.36

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Solution

The fourth proportional to 208,824.64, 288,417.24 and 137,523.36 is: 189,939.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,824.64 : 288,417.24 = 137,523.36 : x
  2. Step 2: Convert to fraction form
    208,824.64/288,417.24 = 137,523.36/x
  3. Step 3: Cross multiply
    208,824.64x = 288,417.24 × 137,523.36
  4. Step 4: Simplify right side
    208,824.64x = 39,664,107,926.73
  5. Step 5: Solve for x
    x = 39,664,107,926.73/208,824.64
  6. Step 6: Final answer
    x = 189,939.79

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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.