Home / 140,099.45-193,337.57-79,668.59

Finding the Fourth Proportional to 140,099.45, 193,337.57 and 79,668.59

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Solution

The fourth proportional to 140,099.45, 193,337.57 and 79,668.59 is: 109,942.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,099.45 : 193,337.57 = 79,668.59 : x
  2. Step 2: Convert to fraction form
    140,099.45/193,337.57 = 79,668.59/x
  3. Step 3: Cross multiply
    140,099.45x = 193,337.57 × 79,668.59
  4. Step 4: Simplify right side
    140,099.45x = 15,402,931,197.58
  5. Step 5: Solve for x
    x = 15,402,931,197.58/140,099.45
  6. Step 6: Final answer
    x = 109,942.84

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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.