Home / 120,484.68-180,480.78-56,351.04

Finding the Fourth Proportional to 120,484.68, 180,480.78 and 56,351.04

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Solution

The fourth proportional to 120,484.68, 180,480.78 and 56,351.04 is: 84,411.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,484.68 : 180,480.78 = 56,351.04 : x
  2. Step 2: Convert to fraction form
    120,484.68/180,480.78 = 56,351.04/x
  3. Step 3: Cross multiply
    120,484.68x = 180,480.78 × 56,351.04
  4. Step 4: Simplify right side
    120,484.68x = 10,170,279,653.01
  5. Step 5: Solve for x
    x = 10,170,279,653.01/120,484.68
  6. Step 6: Final answer
    x = 84,411.39

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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.