Home / 186,759.19-257,749.19-103,981.51

Finding the Fourth Proportional to 186,759.19, 257,749.19 and 103,981.51

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Solution

The fourth proportional to 186,759.19, 257,749.19 and 103,981.51 is: 143,506.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,759.19 : 257,749.19 = 103,981.51 : x
  2. Step 2: Convert to fraction form
    186,759.19/257,749.19 = 103,981.51/x
  3. Step 3: Cross multiply
    186,759.19x = 257,749.19 × 103,981.51
  4. Step 4: Simplify right side
    186,759.19x = 26,801,149,977.48
  5. Step 5: Solve for x
    x = 26,801,149,977.48/186,759.19
  6. Step 6: Final answer
    x = 143,506.46

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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.