Home / 120,945.34-181,331.31-56,867.62

Finding the Fourth Proportional to 120,945.34, 181,331.31 and 56,867.62

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Solution

The fourth proportional to 120,945.34, 181,331.31 and 56,867.62 is: 85,260.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,945.34 : 181,331.31 = 56,867.62 : x
  2. Step 2: Convert to fraction form
    120,945.34/181,331.31 = 56,867.62/x
  3. Step 3: Cross multiply
    120,945.34x = 181,331.31 × 56,867.62
  4. Step 4: Simplify right side
    120,945.34x = 10,311,880,031.18
  5. Step 5: Solve for x
    x = 10,311,880,031.18/120,945.34
  6. Step 6: Final answer
    x = 85,260.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.