Home / 203,035.50-280,316.07-130,467.78

Finding the Fourth Proportional to 203,035.50, 280,316.07 and 130,467.78

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Solution

The fourth proportional to 203,035.50, 280,316.07 and 130,467.78 is: 180,127.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,035.50 : 280,316.07 = 130,467.78 : x
  2. Step 2: Convert to fraction form
    203,035.50/280,316.07 = 130,467.78/x
  3. Step 3: Cross multiply
    203,035.50x = 280,316.07 × 130,467.78
  4. Step 4: Simplify right side
    203,035.50x = 36,572,215,351.22
  5. Step 5: Solve for x
    x = 36,572,215,351.22/203,035.50
  6. Step 6: Final answer
    x = 180,127.20

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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.