Home / 186,398.43-279,321.16-136,908.51

Finding the Fourth Proportional to 186,398.43, 279,321.16 and 136,908.51

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Solution

The fourth proportional to 186,398.43, 279,321.16 and 136,908.51 is: 205,159.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,398.43 : 279,321.16 = 136,908.51 : x
  2. Step 2: Convert to fraction form
    186,398.43/279,321.16 = 136,908.51/x
  3. Step 3: Cross multiply
    186,398.43x = 279,321.16 × 136,908.51
  4. Step 4: Simplify right side
    186,398.43x = 38,241,443,827.07
  5. Step 5: Solve for x
    x = 38,241,443,827.07/186,398.43
  6. Step 6: Final answer
    x = 205,159.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.