Home / 185,317.69-255,738.86-100,434.73

Finding the Fourth Proportional to 185,317.69, 255,738.86 and 100,434.73

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Solution

The fourth proportional to 185,317.69, 255,738.86 and 100,434.73 is: 138,600.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,317.69 : 255,738.86 = 100,434.73 : x
  2. Step 2: Convert to fraction form
    185,317.69/255,738.86 = 100,434.73/x
  3. Step 3: Cross multiply
    185,317.69x = 255,738.86 × 100,434.73
  4. Step 4: Simplify right side
    185,317.69x = 25,685,062,852.43
  5. Step 5: Solve for x
    x = 25,685,062,852.43/185,317.69
  6. Step 6: Final answer
    x = 138,600.17

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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.