Home / 185,108.39-255,450.56-100,225.45

Finding the Fourth Proportional to 185,108.39, 255,450.56 and 100,225.45

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Solution

The fourth proportional to 185,108.39, 255,450.56 and 100,225.45 is: 138,311.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,108.39 : 255,450.56 = 100,225.45 : x
  2. Step 2: Convert to fraction form
    185,108.39/255,450.56 = 100,225.45/x
  3. Step 3: Cross multiply
    185,108.39x = 255,450.56 × 100,225.45
  4. Step 4: Simplify right side
    185,108.39x = 25,602,647,710.71
  5. Step 5: Solve for x
    x = 25,602,647,710.71/185,108.39
  6. Step 6: Final answer
    x = 138,311.66

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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.