Home / 139,985.96-193,177.14-76,325

Finding the Fourth Proportional to 139,985.96, 193,177.14 and 76,325

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Solution

The fourth proportional to 139,985.96, 193,177.14 and 76,325 is: 105,326.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,985.96 : 193,177.14 = 76,325 : x
  2. Step 2: Convert to fraction form
    139,985.96/193,177.14 = 76,325/x
  3. Step 3: Cross multiply
    139,985.96x = 193,177.14 × 76,325
  4. Step 4: Simplify right side
    139,985.96x = 14,744,245,210.50
  5. Step 5: Solve for x
    x = 14,744,245,210.50/139,985.96
  6. Step 6: Final answer
    x = 105,326.60

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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.