Home / 120,440.72-180,660.58-30,483.74

Finding the Fourth Proportional to 120,440.72, 180,660.58 and 30,483.74

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Solution

The fourth proportional to 120,440.72, 180,660.58 and 30,483.74 is: 45,725.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,440.72 : 180,660.58 = 30,483.74 : x
  2. Step 2: Convert to fraction form
    120,440.72/180,660.58 = 30,483.74/x
  3. Step 3: Cross multiply
    120,440.72x = 180,660.58 × 30,483.74
  4. Step 4: Simplify right side
    120,440.72x = 5,507,210,524.41
  5. Step 5: Solve for x
    x = 5,507,210,524.41/120,440.72
  6. Step 6: Final answer
    x = 45,725.49

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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.