Home / 223,849.79-308,910.85-121,875.04

Finding the Fourth Proportional to 223,849.79, 308,910.85 and 121,875.04

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Solution

The fourth proportional to 223,849.79, 308,910.85 and 121,875.04 is: 168,186.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,849.79 : 308,910.85 = 121,875.04 : x
  2. Step 2: Convert to fraction form
    223,849.79/308,910.85 = 121,875.04/x
  3. Step 3: Cross multiply
    223,849.79x = 308,910.85 × 121,875.04
  4. Step 4: Simplify right side
    223,849.79x = 37,648,522,200.18
  5. Step 5: Solve for x
    x = 37,648,522,200.18/223,849.79
  6. Step 6: Final answer
    x = 168,186.54

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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.