Home / 185,268.60-255,670.83-100,385.67

Finding the Fourth Proportional to 185,268.60, 255,670.83 and 100,385.67

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Solution

The fourth proportional to 185,268.60, 255,670.83 and 100,385.67 is: 138,532.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,268.60 : 255,670.83 = 100,385.67 : x
  2. Step 2: Convert to fraction form
    185,268.60/255,670.83 = 100,385.67/x
  3. Step 3: Cross multiply
    185,268.60x = 255,670.83 × 100,385.67
  4. Step 4: Simplify right side
    185,268.60x = 25,665,687,569.01
  5. Step 5: Solve for x
    x = 25,665,687,569.01/185,268.60
  6. Step 6: Final answer
    x = 138,532.31

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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.