Home / 185,108.10-255,449.39-100,225.16

Finding the Fourth Proportional to 185,108.10, 255,449.39 and 100,225.16

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Solution

The fourth proportional to 185,108.10, 255,449.39 and 100,225.16 is: 138,310.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,108.10 : 255,449.39 = 100,225.16 : x
  2. Step 2: Convert to fraction form
    185,108.10/255,449.39 = 100,225.16/x
  3. Step 3: Cross multiply
    185,108.10x = 255,449.39 × 100,225.16
  4. Step 4: Simplify right side
    185,108.10x = 25,602,455,984.65
  5. Step 5: Solve for x
    x = 25,602,455,984.65/185,108.10
  6. Step 6: Final answer
    x = 138,310.84

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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.