Home / 203,170.34-280,377.45-112,528.07

Finding the Fourth Proportional to 203,170.34, 280,377.45 and 112,528.07

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Solution

The fourth proportional to 203,170.34, 280,377.45 and 112,528.07 is: 155,290.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,170.34 : 280,377.45 = 112,528.07 : x
  2. Step 2: Convert to fraction form
    203,170.34/280,377.45 = 112,528.07/x
  3. Step 3: Cross multiply
    203,170.34x = 280,377.45 × 112,528.07
  4. Step 4: Simplify right side
    203,170.34x = 31,550,331,918.13
  5. Step 5: Solve for x
    x = 31,550,331,918.13/203,170.34
  6. Step 6: Final answer
    x = 155,290.05

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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.