Home / 203,001.88-280,143.14-112,364.08

Finding the Fourth Proportional to 203,001.88, 280,143.14 and 112,364.08

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Solution

The fourth proportional to 203,001.88, 280,143.14 and 112,364.08 is: 155,062.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,001.88 : 280,143.14 = 112,364.08 : x
  2. Step 2: Convert to fraction form
    203,001.88/280,143.14 = 112,364.08/x
  3. Step 3: Cross multiply
    203,001.88x = 280,143.14 × 112,364.08
  4. Step 4: Simplify right side
    203,001.88x = 31,478,026,194.41
  5. Step 5: Solve for x
    x = 31,478,026,194.41/203,001.88
  6. Step 6: Final answer
    x = 155,062.73

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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.