Home / 223,511.60-308,441.62-121,536.20

Finding the Fourth Proportional to 223,511.60, 308,441.62 and 121,536.20

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Solution

The fourth proportional to 223,511.60, 308,441.62 and 121,536.20 is: 167,717.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,511.60 : 308,441.62 = 121,536.20 : x
  2. Step 2: Convert to fraction form
    223,511.60/308,441.62 = 121,536.20/x
  3. Step 3: Cross multiply
    223,511.60x = 308,441.62 × 121,536.20
  4. Step 4: Simplify right side
    223,511.60x = 37,486,822,416.64
  5. Step 5: Solve for x
    x = 37,486,822,416.64/223,511.60
  6. Step 6: Final answer
    x = 167,717.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.