Home / 139,905.16-193,063.49-76,241.59

Finding the Fourth Proportional to 139,905.16, 193,063.49 and 76,241.59

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Solution

The fourth proportional to 139,905.16, 193,063.49 and 76,241.59 is: 105,210.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,905.16 : 193,063.49 = 76,241.59 : x
  2. Step 2: Convert to fraction form
    139,905.16/193,063.49 = 76,241.59/x
  3. Step 3: Cross multiply
    139,905.16x = 193,063.49 × 76,241.59
  4. Step 4: Simplify right side
    139,905.16x = 14,719,466,102.02
  5. Step 5: Solve for x
    x = 14,719,466,102.02/139,905.16
  6. Step 6: Final answer
    x = 105,210.32

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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.