Home / 130,831.10-196,246.65-74,843.90

Finding the Fourth Proportional to 130,831.10, 196,246.65 and 74,843.90

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Solution

The fourth proportional to 130,831.10, 196,246.65 and 74,843.90 is: 112,265.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,831.10 : 196,246.65 = 74,843.90 : x
  2. Step 2: Convert to fraction form
    130,831.10/196,246.65 = 74,843.90/x
  3. Step 3: Cross multiply
    130,831.10x = 196,246.65 × 74,843.90
  4. Step 4: Simplify right side
    130,831.10x = 14,687,864,647.94
  5. Step 5: Solve for x
    x = 14,687,864,647.94/130,831.10
  6. Step 6: Final answer
    x = 112,265.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.