Home / 448,121.60-672,182.40-115,697.60

Finding the Fourth Proportional to 448,121.60, 672,182.40 and 115,697.60

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Solution

The fourth proportional to 448,121.60, 672,182.40 and 115,697.60 is: 173,546.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,121.60 : 672,182.40 = 115,697.60 : x
  2. Step 2: Convert to fraction form
    448,121.60/672,182.40 = 115,697.60/x
  3. Step 3: Cross multiply
    448,121.60x = 672,182.40 × 115,697.60
  4. Step 4: Simplify right side
    448,121.60x = 77,769,890,442.24
  5. Step 5: Solve for x
    x = 77,769,890,442.24/448,121.60
  6. Step 6: Final answer
    x = 173,546.40

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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.