Home / 101,880.32-140,596.48-57,167.36

Finding the Fourth Proportional to 101,880.32, 140,596.48 and 57,167.36

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Solution

The fourth proportional to 101,880.32, 140,596.48 and 57,167.36 is: 78,891.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,880.32 : 140,596.48 = 57,167.36 : x
  2. Step 2: Convert to fraction form
    101,880.32/140,596.48 = 57,167.36/x
  3. Step 3: Cross multiply
    101,880.32x = 140,596.48 × 57,167.36
  4. Step 4: Simplify right side
    101,880.32x = 8,037,529,586.89
  5. Step 5: Solve for x
    x = 8,037,529,586.89/101,880.32
  6. Step 6: Final answer
    x = 78,891.88

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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.