Home / 120,420.16-180,638.52-36,176.80

Finding the Fourth Proportional to 120,420.16, 180,638.52 and 36,176.80

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Solution

The fourth proportional to 120,420.16, 180,638.52 and 36,176.80 is: 54,267.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,420.16 : 180,638.52 = 36,176.80 : x
  2. Step 2: Convert to fraction form
    120,420.16/180,638.52 = 36,176.80/x
  3. Step 3: Cross multiply
    120,420.16x = 180,638.52 × 36,176.80
  4. Step 4: Simplify right side
    120,420.16x = 6,534,923,610.34
  5. Step 5: Solve for x
    x = 6,534,923,610.34/120,420.16
  6. Step 6: Final answer
    x = 54,267.69

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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.