Home / 251,770.13-347,450.06-137,056.22

Finding the Fourth Proportional to 251,770.13, 347,450.06 and 137,056.22

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Solution

The fourth proportional to 251,770.13, 347,450.06 and 137,056.22 is: 189,141.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,770.13 : 347,450.06 = 137,056.22 : x
  2. Step 2: Convert to fraction form
    251,770.13/347,450.06 = 137,056.22/x
  3. Step 3: Cross multiply
    251,770.13x = 347,450.06 × 137,056.22
  4. Step 4: Simplify right side
    251,770.13x = 47,620,191,862.37
  5. Step 5: Solve for x
    x = 47,620,191,862.37/251,770.13
  6. Step 6: Final answer
    x = 189,141.55

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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.