Home / 120,512.34-180,661.59-45,580.05

Finding the Fourth Proportional to 120,512.34, 180,661.59 and 45,580.05

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Solution

The fourth proportional to 120,512.34, 180,661.59 and 45,580.05 is: 68,329.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,512.34 : 180,661.59 = 45,580.05 : x
  2. Step 2: Convert to fraction form
    120,512.34/180,661.59 = 45,580.05/x
  3. Step 3: Cross multiply
    120,512.34x = 180,661.59 × 45,580.05
  4. Step 4: Simplify right side
    120,512.34x = 8,234,564,305.28
  5. Step 5: Solve for x
    x = 8,234,564,305.28/120,512.34
  6. Step 6: Final answer
    x = 68,329.64

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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.