Home / 101,705.38-140,353.41-56,383.25

Finding the Fourth Proportional to 101,705.38, 140,353.41 and 56,383.25

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Solution

The fourth proportional to 101,705.38, 140,353.41 and 56,383.25 is: 77,808.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,705.38 : 140,353.41 = 56,383.25 : x
  2. Step 2: Convert to fraction form
    101,705.38/140,353.41 = 56,383.25/x
  3. Step 3: Cross multiply
    101,705.38x = 140,353.41 × 56,383.25
  4. Step 4: Simplify right side
    101,705.38x = 7,913,580,420.70
  5. Step 5: Solve for x
    x = 7,913,580,420.70/101,705.38
  6. Step 6: Final answer
    x = 77,808.87

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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.