Home / 143,405.37-215,110.89-52,217.60

Finding the Fourth Proportional to 143,405.37, 215,110.89 and 52,217.60

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Solution

The fourth proportional to 143,405.37, 215,110.89 and 52,217.60 is: 78,327.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,405.37 : 215,110.89 = 52,217.60 : x
  2. Step 2: Convert to fraction form
    143,405.37/215,110.89 = 52,217.60/x
  3. Step 3: Cross multiply
    143,405.37x = 215,110.89 × 52,217.60
  4. Step 4: Simplify right side
    143,405.37x = 11,232,573,334.11
  5. Step 5: Solve for x
    x = 11,232,573,334.11/143,405.37
  6. Step 6: Final answer
    x = 78,327.42

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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.