Home / 183,391.29-253,125-111,810.78

Finding the Fourth Proportional to 183,391.29, 253,125 and 111,810.78

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Solution

The fourth proportional to 183,391.29, 253,125 and 111,810.78 is: 154,326.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,391.29 : 253,125 = 111,810.78 : x
  2. Step 2: Convert to fraction form
    183,391.29/253,125 = 111,810.78/x
  3. Step 3: Cross multiply
    183,391.29x = 253,125 × 111,810.78
  4. Step 4: Simplify right side
    183,391.29x = 28,302,103,687.50
  5. Step 5: Solve for x
    x = 28,302,103,687.50/183,391.29
  6. Step 6: Final answer
    x = 154,326.32

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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.