Home / 120,312.80-180,434.16-36,069.60

Finding the Fourth Proportional to 120,312.80, 180,434.16 and 36,069.60

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Solution

The fourth proportional to 120,312.80, 180,434.16 and 36,069.60 is: 54,093.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,312.80 : 180,434.16 = 36,069.60 : x
  2. Step 2: Convert to fraction form
    120,312.80/180,434.16 = 36,069.60/x
  3. Step 3: Cross multiply
    120,312.80x = 180,434.16 × 36,069.60
  4. Step 4: Simplify right side
    120,312.80x = 6,508,187,977.54
  5. Step 5: Solve for x
    x = 6,508,187,977.54/120,312.80
  6. Step 6: Final answer
    x = 54,093.90

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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.