Home / 203,039.40-280,147.14-118,108.20

Finding the Fourth Proportional to 203,039.40, 280,147.14 and 118,108.20

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Solution

The fourth proportional to 203,039.40, 280,147.14 and 118,108.20 is: 162,961.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,039.40 : 280,147.14 = 118,108.20 : x
  2. Step 2: Convert to fraction form
    203,039.40/280,147.14 = 118,108.20/x
  3. Step 3: Cross multiply
    203,039.40x = 280,147.14 × 118,108.20
  4. Step 4: Simplify right side
    203,039.40x = 33,087,674,440.55
  5. Step 5: Solve for x
    x = 33,087,674,440.55/203,039.40
  6. Step 6: Final answer
    x = 162,961.84

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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.