Home / 203,038.18-280,189.29-112,392.23

Finding the Fourth Proportional to 203,038.18, 280,189.29 and 112,392.23

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Solution

The fourth proportional to 203,038.18, 280,189.29 and 112,392.23 is: 155,099.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,038.18 : 280,189.29 = 112,392.23 : x
  2. Step 2: Convert to fraction form
    203,038.18/280,189.29 = 112,392.23/x
  3. Step 3: Cross multiply
    203,038.18x = 280,189.29 × 112,392.23
  4. Step 4: Simplify right side
    203,038.18x = 31,491,098,145.74
  5. Step 5: Solve for x
    x = 31,491,098,145.74/203,038.18
  6. Step 6: Final answer
    x = 155,099.39

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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.