Home / 223,868.76-308,931.21-121,892.58

Finding the Fourth Proportional to 223,868.76, 308,931.21 and 121,892.58

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Solution

The fourth proportional to 223,868.76, 308,931.21 and 121,892.58 is: 168,207.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,868.76 : 308,931.21 = 121,892.58 : x
  2. Step 2: Convert to fraction form
    223,868.76/308,931.21 = 121,892.58/x
  3. Step 3: Cross multiply
    223,868.76x = 308,931.21 × 121,892.58
  4. Step 4: Simplify right side
    223,868.76x = 37,656,422,229.42
  5. Step 5: Solve for x
    x = 37,656,422,229.42/223,868.76
  6. Step 6: Final answer
    x = 168,207.58

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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.