Home / 140,074.87-193,303.06-76,412.65

Finding the Fourth Proportional to 140,074.87, 193,303.06 and 76,412.65

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Solution

The fourth proportional to 140,074.87, 193,303.06 and 76,412.65 is: 105,449.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,074.87 : 193,303.06 = 76,412.65 : x
  2. Step 2: Convert to fraction form
    140,074.87/193,303.06 = 76,412.65/x
  3. Step 3: Cross multiply
    140,074.87x = 193,303.06 × 76,412.65
  4. Step 4: Simplify right side
    140,074.87x = 14,770,799,067.71
  5. Step 5: Solve for x
    x = 14,770,799,067.71/140,074.87
  6. Step 6: Final answer
    x = 105,449.31

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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.