Home / 120,346.80-180,520.19-31,600.16

Finding the Fourth Proportional to 120,346.80, 180,520.19 and 31,600.16

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Solution

The fourth proportional to 120,346.80, 180,520.19 and 31,600.16 is: 47,400.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,346.80 : 180,520.19 = 31,600.16 : x
  2. Step 2: Convert to fraction form
    120,346.80/180,520.19 = 31,600.16/x
  3. Step 3: Cross multiply
    120,346.80x = 180,520.19 × 31,600.16
  4. Step 4: Simplify right side
    120,346.80x = 5,704,465,826.63
  5. Step 5: Solve for x
    x = 5,704,465,826.63/120,346.80
  6. Step 6: Final answer
    x = 47,400.23

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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.