Home / 140,077.89-193,307.24-76,415.69

Finding the Fourth Proportional to 140,077.89, 193,307.24 and 76,415.69

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Solution

The fourth proportional to 140,077.89, 193,307.24 and 76,415.69 is: 105,453.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,077.89 : 193,307.24 = 76,415.69 : x
  2. Step 2: Convert to fraction form
    140,077.89/193,307.24 = 76,415.69/x
  3. Step 3: Cross multiply
    140,077.89x = 193,307.24 × 76,415.69
  4. Step 4: Simplify right side
    140,077.89x = 14,771,704,777.98
  5. Step 5: Solve for x
    x = 14,771,704,777.98/140,077.89
  6. Step 6: Final answer
    x = 105,453.51

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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.