Home / 120,015.28-180,055.64-52,535.04

Finding the Fourth Proportional to 120,015.28, 180,055.64 and 52,535.04

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Solution

The fourth proportional to 120,015.28, 180,055.64 and 52,535.04 is: 78,816.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,015.28 : 180,055.64 = 52,535.04 : x
  2. Step 2: Convert to fraction form
    120,015.28/180,055.64 = 52,535.04/x
  3. Step 3: Cross multiply
    120,015.28x = 180,055.64 × 52,535.04
  4. Step 4: Simplify right side
    120,015.28x = 9,459,230,249.63
  5. Step 5: Solve for x
    x = 9,459,230,249.63/120,015.28
  6. Step 6: Final answer
    x = 78,816.88

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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.