Home / 185,051.28-255,370.56-100,168.32

Finding the Fourth Proportional to 185,051.28, 255,370.56 and 100,168.32

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Solution

The fourth proportional to 185,051.28, 255,370.56 and 100,168.32 is: 138,232.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,051.28 : 255,370.56 = 100,168.32 : x
  2. Step 2: Convert to fraction form
    185,051.28/255,370.56 = 100,168.32/x
  3. Step 3: Cross multiply
    185,051.28x = 255,370.56 × 100,168.32
  4. Step 4: Simplify right side
    185,051.28x = 25,580,039,972.66
  5. Step 5: Solve for x
    x = 25,580,039,972.66/185,051.28
  6. Step 6: Final answer
    x = 138,232.17

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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.