Home / 168,920.78-253,454.64-105,885.34

Finding the Fourth Proportional to 168,920.78, 253,454.64 and 105,885.34

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Solution

The fourth proportional to 168,920.78, 253,454.64 and 105,885.34 is: 158,874.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,920.78 : 253,454.64 = 105,885.34 : x
  2. Step 2: Convert to fraction form
    168,920.78/253,454.64 = 105,885.34/x
  3. Step 3: Cross multiply
    168,920.78x = 253,454.64 × 105,885.34
  4. Step 4: Simplify right side
    168,920.78x = 26,837,130,730.98
  5. Step 5: Solve for x
    x = 26,837,130,730.98/168,920.78
  6. Step 6: Final answer
    x = 158,874.06

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1.5x scale

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.