Home / 100,304.40-138,383.46-60,019.32

Finding the Fourth Proportional to 100,304.40, 138,383.46 and 60,019.32

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Solution

The fourth proportional to 100,304.40, 138,383.46 and 60,019.32 is: 82,804.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,304.40 : 138,383.46 = 60,019.32 : x
  2. Step 2: Convert to fraction form
    100,304.40/138,383.46 = 60,019.32/x
  3. Step 3: Cross multiply
    100,304.40x = 138,383.46 × 60,019.32
  4. Step 4: Simplify right side
    100,304.40x = 8,305,681,168.45
  5. Step 5: Solve for x
    x = 8,305,681,168.45/100,304.40
  6. Step 6: Final answer
    x = 82,804.75

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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.