Home / 140,043.16-193,258.68-79,613.82

Finding the Fourth Proportional to 140,043.16, 193,258.68 and 79,613.82

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Solution

The fourth proportional to 140,043.16, 193,258.68 and 79,613.82 is: 109,866.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,043.16 : 193,258.68 = 79,613.82 : x
  2. Step 2: Convert to fraction form
    140,043.16/193,258.68 = 79,613.82/x
  3. Step 3: Cross multiply
    140,043.16x = 193,258.68 × 79,613.82
  4. Step 4: Simplify right side
    140,043.16x = 15,386,061,464.41
  5. Step 5: Solve for x
    x = 15,386,061,464.41/140,043.16
  6. Step 6: Final answer
    x = 109,866.57

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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.