Home / 203,585.44-280,948.64-112,943.20

Finding the Fourth Proportional to 203,585.44, 280,948.64 and 112,943.20

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Solution

The fourth proportional to 203,585.44, 280,948.64 and 112,943.20 is: 155,862.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,585.44 : 280,948.64 = 112,943.20 : x
  2. Step 2: Convert to fraction form
    203,585.44/280,948.64 = 112,943.20/x
  3. Step 3: Cross multiply
    203,585.44x = 280,948.64 × 112,943.20
  4. Step 4: Simplify right side
    203,585.44x = 31,731,238,437.25
  5. Step 5: Solve for x
    x = 31,731,238,437.25/203,585.44
  6. Step 6: Final answer
    x = 155,862.02

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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.