Home / 203,320.06-280,583.30-112,677.50

Finding the Fourth Proportional to 203,320.06, 280,583.30 and 112,677.50

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Solution

The fourth proportional to 203,320.06, 280,583.30 and 112,677.50 is: 155,495.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,320.06 : 280,583.30 = 112,677.50 : x
  2. Step 2: Convert to fraction form
    203,320.06/280,583.30 = 112,677.50/x
  3. Step 3: Cross multiply
    203,320.06x = 280,583.30 × 112,677.50
  4. Step 4: Simplify right side
    203,320.06x = 31,615,424,785.75
  5. Step 5: Solve for x
    x = 31,615,424,785.75/203,320.06
  6. Step 6: Final answer
    x = 155,495.85

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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.