Home / 136,771.62-205,155.30-70,173.32

Finding the Fourth Proportional to 136,771.62, 205,155.30 and 70,173.32

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Solution

The fourth proportional to 136,771.62, 205,155.30 and 70,173.32 is: 105,258.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,771.62 : 205,155.30 = 70,173.32 : x
  2. Step 2: Convert to fraction form
    136,771.62/205,155.30 = 70,173.32/x
  3. Step 3: Cross multiply
    136,771.62x = 205,155.30 × 70,173.32
  4. Step 4: Simplify right side
    136,771.62x = 14,396,427,490.82
  5. Step 5: Solve for x
    x = 14,396,427,490.82/136,771.62
  6. Step 6: Final answer
    x = 105,258.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.