Home / 140,083.49-193,311.38-76,421.27

Finding the Fourth Proportional to 140,083.49, 193,311.38 and 76,421.27

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Solution

The fourth proportional to 140,083.49, 193,311.38 and 76,421.27 is: 105,459.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,083.49 : 193,311.38 = 76,421.27 : x
  2. Step 2: Convert to fraction form
    140,083.49/193,311.38 = 76,421.27/x
  3. Step 3: Cross multiply
    140,083.49x = 193,311.38 × 76,421.27
  4. Step 4: Simplify right side
    140,083.49x = 14,773,100,389.55
  5. Step 5: Solve for x
    x = 14,773,100,389.55/140,083.49
  6. Step 6: Final answer
    x = 105,459.26

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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.