Home / 140,063.58-193,287.06-76,400.82

Finding the Fourth Proportional to 140,063.58, 193,287.06 and 76,400.82

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Solution

The fourth proportional to 140,063.58, 193,287.06 and 76,400.82 is: 105,432.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,063.58 : 193,287.06 = 76,400.82 : x
  2. Step 2: Convert to fraction form
    140,063.58/193,287.06 = 76,400.82/x
  3. Step 3: Cross multiply
    140,063.58x = 193,287.06 × 76,400.82
  4. Step 4: Simplify right side
    140,063.58x = 14,767,289,879.39
  5. Step 5: Solve for x
    x = 14,767,289,879.39/140,063.58
  6. Step 6: Final answer
    x = 105,432.76

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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.