Home / 132,431.87-182,755.37-78,015.67

Finding the Fourth Proportional to 132,431.87, 182,755.37 and 78,015.67

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Solution

The fourth proportional to 132,431.87, 182,755.37 and 78,015.67 is: 107,661.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,431.87 : 182,755.37 = 78,015.67 : x
  2. Step 2: Convert to fraction form
    132,431.87/182,755.37 = 78,015.67/x
  3. Step 3: Cross multiply
    132,431.87x = 182,755.37 × 78,015.67
  4. Step 4: Simplify right side
    132,431.87x = 14,257,782,374.80
  5. Step 5: Solve for x
    x = 14,257,782,374.80/132,431.87
  6. Step 6: Final answer
    x = 107,661.26

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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.