Home / 185,072.10-255,399.59-100,189.17

Finding the Fourth Proportional to 185,072.10, 255,399.59 and 100,189.17

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Solution

The fourth proportional to 185,072.10, 255,399.59 and 100,189.17 is: 138,261.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,072.10 : 255,399.59 = 100,189.17 : x
  2. Step 2: Convert to fraction form
    185,072.10/255,399.59 = 100,189.17/x
  3. Step 3: Cross multiply
    185,072.10x = 255,399.59 × 100,189.17
  4. Step 4: Simplify right side
    185,072.10x = 25,588,272,439.49
  5. Step 5: Solve for x
    x = 25,588,272,439.49/185,072.10
  6. Step 6: Final answer
    x = 138,261.10

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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.