Home / 186,171.22-256,919.37-101,288.74

Finding the Fourth Proportional to 186,171.22, 256,919.37 and 101,288.74

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Solution

The fourth proportional to 186,171.22, 256,919.37 and 101,288.74 is: 139,780.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,171.22 : 256,919.37 = 101,288.74 : x
  2. Step 2: Convert to fraction form
    186,171.22/256,919.37 = 101,288.74/x
  3. Step 3: Cross multiply
    186,171.22x = 256,919.37 × 101,288.74
  4. Step 4: Simplify right side
    186,171.22x = 26,023,039,268.89
  5. Step 5: Solve for x
    x = 26,023,039,268.89/186,171.22
  6. Step 6: Final answer
    x = 139,780.14

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1.5x scale

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.