Home / 120,312.72-180,448.56-50,173.20

Finding the Fourth Proportional to 120,312.72, 180,448.56 and 50,173.20

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Solution

The fourth proportional to 120,312.72, 180,448.56 and 50,173.20 is: 75,251.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,312.72 : 180,448.56 = 50,173.20 : x
  2. Step 2: Convert to fraction form
    120,312.72/180,448.56 = 50,173.20/x
  3. Step 3: Cross multiply
    120,312.72x = 180,448.56 × 50,173.20
  4. Step 4: Simplify right side
    120,312.72x = 9,053,681,690.59
  5. Step 5: Solve for x
    x = 9,053,681,690.59/120,312.72
  6. Step 6: Final answer
    x = 75,251.24

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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.