Home / 203,510.10-280,860.74-112,895.27

Finding the Fourth Proportional to 203,510.10, 280,860.74 and 112,895.27

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Solution

The fourth proportional to 203,510.10, 280,860.74 and 112,895.27 is: 155,804.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,510.10 : 280,860.74 = 112,895.27 : x
  2. Step 2: Convert to fraction form
    203,510.10/280,860.74 = 112,895.27/x
  3. Step 3: Cross multiply
    203,510.10x = 280,860.74 × 112,895.27
  4. Step 4: Simplify right side
    203,510.10x = 31,707,848,900.02
  5. Step 5: Solve for x
    x = 31,707,848,900.02/203,510.10
  6. Step 6: Final answer
    x = 155,804.80

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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.