Home / 186,767.90-279,985.38-68,411.53

Finding the Fourth Proportional to 186,767.90, 279,985.38 and 68,411.53

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Solution

The fourth proportional to 186,767.90, 279,985.38 and 68,411.53 is: 102,556.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,767.90 : 279,985.38 = 68,411.53 : x
  2. Step 2: Convert to fraction form
    186,767.90/279,985.38 = 68,411.53/x
  3. Step 3: Cross multiply
    186,767.90x = 279,985.38 × 68,411.53
  4. Step 4: Simplify right side
    186,767.90x = 19,154,228,223.43
  5. Step 5: Solve for x
    x = 19,154,228,223.43/186,767.90
  6. Step 6: Final answer
    x = 102,556.32

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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.