Home / 154,553.59-213,305.43-111,671.79

Finding the Fourth Proportional to 154,553.59, 213,305.43 and 111,671.79

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Solution

The fourth proportional to 154,553.59, 213,305.43 and 111,671.79 is: 154,122.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,553.59 : 213,305.43 = 111,671.79 : x
  2. Step 2: Convert to fraction form
    154,553.59/213,305.43 = 111,671.79/x
  3. Step 3: Cross multiply
    154,553.59x = 213,305.43 × 111,671.79
  4. Step 4: Simplify right side
    154,553.59x = 23,820,199,184.82
  5. Step 5: Solve for x
    x = 23,820,199,184.82/154,553.59
  6. Step 6: Final answer
    x = 154,122.59

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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.