Home / 203,427.93-280,747.17-112,812.31

Finding the Fourth Proportional to 203,427.93, 280,747.17 and 112,812.31

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Solution

The fourth proportional to 203,427.93, 280,747.17 and 112,812.31 is: 155,690.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,427.93 : 280,747.17 = 112,812.31 : x
  2. Step 2: Convert to fraction form
    203,427.93/280,747.17 = 112,812.31/x
  3. Step 3: Cross multiply
    203,427.93x = 280,747.17 × 112,812.31
  4. Step 4: Simplify right side
    203,427.93x = 31,671,736,773.66
  5. Step 5: Solve for x
    x = 31,671,736,773.66/203,427.93
  6. Step 6: Final answer
    x = 155,690.21

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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.