Home / 185,153.96-255,512.08-100,270.76

Finding the Fourth Proportional to 185,153.96, 255,512.08 and 100,270.76

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Solution

The fourth proportional to 185,153.96, 255,512.08 and 100,270.76 is: 138,373.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,153.96 : 255,512.08 = 100,270.76 : x
  2. Step 2: Convert to fraction form
    185,153.96/255,512.08 = 100,270.76/x
  3. Step 3: Cross multiply
    185,153.96x = 255,512.08 × 100,270.76
  4. Step 4: Simplify right side
    185,153.96x = 25,620,390,450.78
  5. Step 5: Solve for x
    x = 25,620,390,450.78/185,153.96
  6. Step 6: Final answer
    x = 138,373.44

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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.