Home / 186,172.19-256,918.74-101,289.86

Finding the Fourth Proportional to 186,172.19, 256,918.74 and 101,289.86

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Solution

The fourth proportional to 186,172.19, 256,918.74 and 101,289.86 is: 139,780.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,172.19 : 256,918.74 = 101,289.86 : x
  2. Step 2: Convert to fraction form
    186,172.19/256,918.74 = 101,289.86/x
  3. Step 3: Cross multiply
    186,172.19x = 256,918.74 × 101,289.86
  4. Step 4: Simplify right side
    186,172.19x = 26,023,263,205.98
  5. Step 5: Solve for x
    x = 26,023,263,205.98/186,172.19
  6. Step 6: Final answer
    x = 139,780.61

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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.