Home / 187,403.12-258,542.58-115,658.58

Finding the Fourth Proportional to 187,403.12, 258,542.58 and 115,658.58

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Solution

The fourth proportional to 187,403.12, 258,542.58 and 115,658.58 is: 159,563.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,403.12 : 258,542.58 = 115,658.58 : x
  2. Step 2: Convert to fraction form
    187,403.12/258,542.58 = 115,658.58/x
  3. Step 3: Cross multiply
    187,403.12x = 258,542.58 × 115,658.58
  4. Step 4: Simplify right side
    187,403.12x = 29,902,669,075.59
  5. Step 5: Solve for x
    x = 29,902,669,075.59/187,403.12
  6. Step 6: Final answer
    x = 159,563.35

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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.