Home / 185,072.12-255,400.08-100,188.98

Finding the Fourth Proportional to 185,072.12, 255,400.08 and 100,188.98

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Solution

The fourth proportional to 185,072.12, 255,400.08 and 100,188.98 is: 138,261.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,072.12 : 255,400.08 = 100,188.98 : x
  2. Step 2: Convert to fraction form
    185,072.12/255,400.08 = 100,188.98/x
  3. Step 3: Cross multiply
    185,072.12x = 255,400.08 × 100,188.98
  4. Step 4: Simplify right side
    185,072.12x = 25,588,273,507.12
  5. Step 5: Solve for x
    x = 25,588,273,507.12/185,072.12
  6. Step 6: Final answer
    x = 138,261.09

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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.