Home / 127,831.10-191,744.85-57,710.30

Finding the Fourth Proportional to 127,831.10, 191,744.85 and 57,710.30

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Solution

The fourth proportional to 127,831.10, 191,744.85 and 57,710.30 is: 86,564.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,831.10 : 191,744.85 = 57,710.30 : x
  2. Step 2: Convert to fraction form
    127,831.10/191,744.85 = 57,710.30/x
  3. Step 3: Cross multiply
    127,831.10x = 191,744.85 × 57,710.30
  4. Step 4: Simplify right side
    127,831.10x = 11,065,652,816.96
  5. Step 5: Solve for x
    x = 11,065,652,816.96/127,831.10
  6. Step 6: Final answer
    x = 86,564.64

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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.