Home / 203,001.34-280,139.70-112,357.48

Finding the Fourth Proportional to 203,001.34, 280,139.70 and 112,357.48

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Solution

The fourth proportional to 203,001.34, 280,139.70 and 112,357.48 is: 155,052.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,001.34 : 280,139.70 = 112,357.48 : x
  2. Step 2: Convert to fraction form
    203,001.34/280,139.70 = 112,357.48/x
  3. Step 3: Cross multiply
    203,001.34x = 280,139.70 × 112,357.48
  4. Step 4: Simplify right side
    203,001.34x = 31,475,790,739.96
  5. Step 5: Solve for x
    x = 31,475,790,739.96/203,001.34
  6. Step 6: Final answer
    x = 155,052.13

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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.