Home / 223,825.74-308,909.04-128,313.96

Finding the Fourth Proportional to 223,825.74, 308,909.04 and 128,313.96

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Solution

The fourth proportional to 223,825.74, 308,909.04 and 128,313.96 is: 177,090.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,825.74 : 308,909.04 = 128,313.96 : x
  2. Step 2: Convert to fraction form
    223,825.74/308,909.04 = 128,313.96/x
  3. Step 3: Cross multiply
    223,825.74x = 308,909.04 × 128,313.96
  4. Step 4: Simplify right side
    223,825.74x = 39,637,342,202.20
  5. Step 5: Solve for x
    x = 39,637,342,202.20/223,825.74
  6. Step 6: Final answer
    x = 177,090.19

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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.