Home / 187,984.80-259,329.60-112,518.72

Finding the Fourth Proportional to 187,984.80, 259,329.60 and 112,518.72

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Solution

The fourth proportional to 187,984.80, 259,329.60 and 112,518.72 is: 155,222.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,984.80 : 259,329.60 = 112,518.72 : x
  2. Step 2: Convert to fraction form
    187,984.80/259,329.60 = 112,518.72/x
  3. Step 3: Cross multiply
    187,984.80x = 259,329.60 × 112,518.72
  4. Step 4: Simplify right side
    187,984.80x = 29,179,434,650.11
  5. Step 5: Solve for x
    x = 29,179,434,650.11/187,984.80
  6. Step 6: Final answer
    x = 155,222.31

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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.