Home / 186,124.20-279,186.30-115,265.40

Finding the Fourth Proportional to 186,124.20, 279,186.30 and 115,265.40

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Solution

The fourth proportional to 186,124.20, 279,186.30 and 115,265.40 is: 172,898.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,124.20 : 279,186.30 = 115,265.40 : x
  2. Step 2: Convert to fraction form
    186,124.20/279,186.30 = 115,265.40/x
  3. Step 3: Cross multiply
    186,124.20x = 279,186.30 × 115,265.40
  4. Step 4: Simplify right side
    186,124.20x = 32,180,520,544.02
  5. Step 5: Solve for x
    x = 32,180,520,544.02/186,124.20
  6. Step 6: Final answer
    x = 172,898.10

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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.