Home / 136,770.12-205,153.05-70,171.82

Finding the Fourth Proportional to 136,770.12, 205,153.05 and 70,171.82

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Solution

The fourth proportional to 136,770.12, 205,153.05 and 70,171.82 is: 105,256.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,770.12 : 205,153.05 = 70,171.82 : x
  2. Step 2: Convert to fraction form
    136,770.12/205,153.05 = 70,171.82/x
  3. Step 3: Cross multiply
    136,770.12x = 205,153.05 × 70,171.82
  4. Step 4: Simplify right side
    136,770.12x = 14,395,962,903.75
  5. Step 5: Solve for x
    x = 14,395,962,903.75/136,770.12
  6. Step 6: Final answer
    x = 105,256.64

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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.