Home / 139,928.16-193,100.58-76,265.76

Finding the Fourth Proportional to 139,928.16, 193,100.58 and 76,265.76

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Solution

The fourth proportional to 139,928.16, 193,100.58 and 76,265.76 is: 105,246.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,928.16 : 193,100.58 = 76,265.76 : x
  2. Step 2: Convert to fraction form
    139,928.16/193,100.58 = 76,265.76/x
  3. Step 3: Cross multiply
    139,928.16x = 193,100.58 × 76,265.76
  4. Step 4: Simplify right side
    139,928.16x = 14,726,962,490.14
  5. Step 5: Solve for x
    x = 14,726,962,490.14/139,928.16
  6. Step 6: Final answer
    x = 105,246.60

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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.