Home / 95,427.20-143,140.80-91,490.60

Finding the Fourth Proportional to 95,427.20, 143,140.80 and 91,490.60

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Solution

The fourth proportional to 95,427.20, 143,140.80 and 91,490.60 is: 137,235.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,427.20 : 143,140.80 = 91,490.60 : x
  2. Step 2: Convert to fraction form
    95,427.20/143,140.80 = 91,490.60/x
  3. Step 3: Cross multiply
    95,427.20x = 143,140.80 × 91,490.60
  4. Step 4: Simplify right side
    95,427.20x = 13,096,037,676.48
  5. Step 5: Solve for x
    x = 13,096,037,676.48/95,427.20
  6. Step 6: Final answer
    x = 137,235.90

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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.