Home / 186,914.12-257,939.72-115,265.48

Finding the Fourth Proportional to 186,914.12, 257,939.72 and 115,265.48

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Solution

The fourth proportional to 186,914.12, 257,939.72 and 115,265.48 is: 159,065.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,914.12 : 257,939.72 = 115,265.48 : x
  2. Step 2: Convert to fraction form
    186,914.12/257,939.72 = 115,265.48/x
  3. Step 3: Cross multiply
    186,914.12x = 257,939.72 × 115,265.48
  4. Step 4: Simplify right side
    186,914.12x = 29,731,545,636.87
  5. Step 5: Solve for x
    x = 29,731,545,636.87/186,914.12
  6. Step 6: Final answer
    x = 159,065.27

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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.