Home / 140,317.66-193,642.68-76,659.58

Finding the Fourth Proportional to 140,317.66, 193,642.68 and 76,659.58

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Solution

The fourth proportional to 140,317.66, 193,642.68 and 76,659.58 is: 105,792.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,317.66 : 193,642.68 = 76,659.58 : x
  2. Step 2: Convert to fraction form
    140,317.66/193,642.68 = 76,659.58/x
  3. Step 3: Cross multiply
    140,317.66x = 193,642.68 × 76,659.58
  4. Step 4: Simplify right side
    140,317.66x = 14,844,566,518.87
  5. Step 5: Solve for x
    x = 14,844,566,518.87/140,317.66
  6. Step 6: Final answer
    x = 105,792.57

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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.