Home / 185,153.80-255,511.26-100,270.12

Finding the Fourth Proportional to 185,153.80, 255,511.26 and 100,270.12

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Solution

The fourth proportional to 185,153.80, 255,511.26 and 100,270.12 is: 138,372.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,153.80 : 255,511.26 = 100,270.12 : x
  2. Step 2: Convert to fraction form
    185,153.80/255,511.26 = 100,270.12/x
  3. Step 3: Cross multiply
    185,153.80x = 255,511.26 × 100,270.12
  4. Step 4: Simplify right side
    185,153.80x = 25,620,144,701.55
  5. Step 5: Solve for x
    x = 25,620,144,701.55/185,153.80
  6. Step 6: Final answer
    x = 138,372.23

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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.