Home / 99,698.31-137,604.96-57,280.23

Finding the Fourth Proportional to 99,698.31, 137,604.96 and 57,280.23

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Solution

The fourth proportional to 99,698.31, 137,604.96 and 57,280.23 is: 79,058.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,698.31 : 137,604.96 = 57,280.23 : x
  2. Step 2: Convert to fraction form
    99,698.31/137,604.96 = 57,280.23/x
  3. Step 3: Cross multiply
    99,698.31x = 137,604.96 × 57,280.23
  4. Step 4: Simplify right side
    99,698.31x = 7,882,043,757.94
  5. Step 5: Solve for x
    x = 7,882,043,757.94/99,698.31
  6. Step 6: Final answer
    x = 79,058.95

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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.