Home / 101,680.01-140,326.82-56,372.21

Finding the Fourth Proportional to 101,680.01, 140,326.82 and 56,372.21

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Solution

The fourth proportional to 101,680.01, 140,326.82 and 56,372.21 is: 77,798.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,680.01 : 140,326.82 = 56,372.21 : x
  2. Step 2: Convert to fraction form
    101,680.01/140,326.82 = 56,372.21/x
  3. Step 3: Cross multiply
    101,680.01x = 140,326.82 × 56,372.21
  4. Step 4: Simplify right side
    101,680.01x = 7,910,532,719.80
  5. Step 5: Solve for x
    x = 7,910,532,719.80/101,680.01
  6. Step 6: Final answer
    x = 77,798.31

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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.