Home / 203,069.10-280,237.56-112,426.44

Finding the Fourth Proportional to 203,069.10, 280,237.56 and 112,426.44

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Solution

The fourth proportional to 203,069.10, 280,237.56 and 112,426.44 is: 155,149.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,069.10 : 280,237.56 = 112,426.44 : x
  2. Step 2: Convert to fraction form
    203,069.10/280,237.56 = 112,426.44/x
  3. Step 3: Cross multiply
    203,069.10x = 280,237.56 × 112,426.44
  4. Step 4: Simplify right side
    203,069.10x = 31,506,111,225.09
  5. Step 5: Solve for x
    x = 31,506,111,225.09/203,069.10
  6. Step 6: Final answer
    x = 155,149.71

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1.5x scale

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.