Home / 101,621.25-140,235.51-56,299.09

Finding the Fourth Proportional to 101,621.25, 140,235.51 and 56,299.09

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Solution

The fourth proportional to 101,621.25, 140,235.51 and 56,299.09 is: 77,691.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,621.25 : 140,235.51 = 56,299.09 : x
  2. Step 2: Convert to fraction form
    101,621.25/140,235.51 = 56,299.09/x
  3. Step 3: Cross multiply
    101,621.25x = 140,235.51 × 56,299.09
  4. Step 4: Simplify right side
    101,621.25x = 7,895,131,598.69
  5. Step 5: Solve for x
    x = 7,895,131,598.69/101,621.25
  6. Step 6: Final answer
    x = 77,691.74

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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.