Home / 223,516.41-308,455.70-128,023.03

Finding the Fourth Proportional to 223,516.41, 308,455.70 and 128,023.03

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Solution

The fourth proportional to 223,516.41, 308,455.70 and 128,023.03 is: 176,673.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,516.41 : 308,455.70 = 128,023.03 : x
  2. Step 2: Convert to fraction form
    223,516.41/308,455.70 = 128,023.03/x
  3. Step 3: Cross multiply
    223,516.41x = 308,455.70 × 128,023.03
  4. Step 4: Simplify right side
    223,516.41x = 39,489,433,080.23
  5. Step 5: Solve for x
    x = 39,489,433,080.23/223,516.41
  6. Step 6: Final answer
    x = 176,673.53

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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.