Home / 136,915.32-204,994.26-70,211.64

Finding the Fourth Proportional to 136,915.32, 204,994.26 and 70,211.64

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Solution

The fourth proportional to 136,915.32, 204,994.26 and 70,211.64 is: 105,123.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,915.32 : 204,994.26 = 70,211.64 : x
  2. Step 2: Convert to fraction form
    136,915.32/204,994.26 = 70,211.64/x
  3. Step 3: Cross multiply
    136,915.32x = 204,994.26 × 70,211.64
  4. Step 4: Simplify right side
    136,915.32x = 14,392,983,185.19
  5. Step 5: Solve for x
    x = 14,392,983,185.19/136,915.32
  6. Step 6: Final answer
    x = 105,123.25

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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.