Home / 203,029.06-280,177.68-112,385.20

Finding the Fourth Proportional to 203,029.06, 280,177.68 and 112,385.20

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Solution

The fourth proportional to 203,029.06, 280,177.68 and 112,385.20 is: 155,090.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,029.06 : 280,177.68 = 112,385.20 : x
  2. Step 2: Convert to fraction form
    203,029.06/280,177.68 = 112,385.20/x
  3. Step 3: Cross multiply
    203,029.06x = 280,177.68 × 112,385.20
  4. Step 4: Simplify right side
    203,029.06x = 31,487,824,602.34
  5. Step 5: Solve for x
    x = 31,487,824,602.34/203,029.06
  6. Step 6: Final answer
    x = 155,090.23

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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.