Home / 186,845.03-257,854.55-105,201.40

Finding the Fourth Proportional to 186,845.03, 257,854.55 and 105,201.40

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Solution

The fourth proportional to 186,845.03, 257,854.55 and 105,201.40 is: 145,182.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,845.03 : 257,854.55 = 105,201.40 : x
  2. Step 2: Convert to fraction form
    186,845.03/257,854.55 = 105,201.40/x
  3. Step 3: Cross multiply
    186,845.03x = 257,854.55 × 105,201.40
  4. Step 4: Simplify right side
    186,845.03x = 27,126,658,485.73
  5. Step 5: Solve for x
    x = 27,126,658,485.73/186,845.03
  6. Step 6: Final answer
    x = 145,182.66

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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.