Home / 101,928.56-140,666.09-56,606.75

Finding the Fourth Proportional to 101,928.56, 140,666.09 and 56,606.75

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Solution

The fourth proportional to 101,928.56, 140,666.09 and 56,606.75 is: 78,119.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,928.56 : 140,666.09 = 56,606.75 : x
  2. Step 2: Convert to fraction form
    101,928.56/140,666.09 = 56,606.75/x
  3. Step 3: Cross multiply
    101,928.56x = 140,666.09 × 56,606.75
  4. Step 4: Simplify right side
    101,928.56x = 7,962,650,190.11
  5. Step 5: Solve for x
    x = 7,962,650,190.11/101,928.56
  6. Step 6: Final answer
    x = 78,119.91

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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.