Home / 120,004.90-180,007.35-80,347.30

Finding the Fourth Proportional to 120,004.90, 180,007.35 and 80,347.30

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Solution

The fourth proportional to 120,004.90, 180,007.35 and 80,347.30 is: 120,520.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,004.90 : 180,007.35 = 80,347.30 : x
  2. Step 2: Convert to fraction form
    120,004.90/180,007.35 = 80,347.30/x
  3. Step 3: Cross multiply
    120,004.90x = 180,007.35 × 80,347.30
  4. Step 4: Simplify right side
    120,004.90x = 14,463,104,552.66
  5. Step 5: Solve for x
    x = 14,463,104,552.66/120,004.90
  6. Step 6: Final answer
    x = 120,520.95

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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.