Home / 170,528.10-255,714.40-81,823.38

Finding the Fourth Proportional to 170,528.10, 255,714.40 and 81,823.38

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Solution

The fourth proportional to 170,528.10, 255,714.40 and 81,823.38 is: 122,697.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,528.10 : 255,714.40 = 81,823.38 : x
  2. Step 2: Convert to fraction form
    170,528.10/255,714.40 = 81,823.38/x
  3. Step 3: Cross multiply
    170,528.10x = 255,714.40 × 81,823.38
  4. Step 4: Simplify right side
    170,528.10x = 20,923,416,522.67
  5. Step 5: Solve for x
    x = 20,923,416,522.67/170,528.10
  6. Step 6: Final answer
    x = 122,697.76

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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.