Home / 120,025.55-180,038.38-31,278.83

Finding the Fourth Proportional to 120,025.55, 180,038.38 and 31,278.83

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Solution

The fourth proportional to 120,025.55, 180,038.38 and 31,278.83 is: 46,918.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,025.55 : 180,038.38 = 31,278.83 : x
  2. Step 2: Convert to fraction form
    120,025.55/180,038.38 = 31,278.83/x
  3. Step 3: Cross multiply
    120,025.55x = 180,038.38 × 31,278.83
  4. Step 4: Simplify right side
    120,025.55x = 5,631,389,509.60
  5. Step 5: Solve for x
    x = 5,631,389,509.60/120,025.55
  6. Step 6: Final answer
    x = 46,918.26

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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.