Home / 101,928.06-140,665.40-56,606.25

Finding the Fourth Proportional to 101,928.06, 140,665.40 and 56,606.25

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Solution

The fourth proportional to 101,928.06, 140,665.40 and 56,606.25 is: 78,119.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,928.06 : 140,665.40 = 56,606.25 : x
  2. Step 2: Convert to fraction form
    101,928.06/140,665.40 = 56,606.25/x
  3. Step 3: Cross multiply
    101,928.06x = 140,665.40 × 56,606.25
  4. Step 4: Simplify right side
    101,928.06x = 7,962,540,798.75
  5. Step 5: Solve for x
    x = 7,962,540,798.75/101,928.06
  6. Step 6: Final answer
    x = 78,119.22

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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.