Home / 129,215.05-193,822.57-40,475.50

Finding the Fourth Proportional to 129,215.05, 193,822.57 and 40,475.50

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Solution

The fourth proportional to 129,215.05, 193,822.57 and 40,475.50 is: 60,713.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,215.05 : 193,822.57 = 40,475.50 : x
  2. Step 2: Convert to fraction form
    129,215.05/193,822.57 = 40,475.50/x
  3. Step 3: Cross multiply
    129,215.05x = 193,822.57 × 40,475.50
  4. Step 4: Simplify right side
    129,215.05x = 7,845,064,998.07
  5. Step 5: Solve for x
    x = 7,845,064,998.07/129,215.05
  6. Step 6: Final answer
    x = 60,713.25

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Similar ratio
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1.5x scale

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.