Home / 120,019.23-180,021.51-49,899.15

Finding the Fourth Proportional to 120,019.23, 180,021.51 and 49,899.15

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Solution

The fourth proportional to 120,019.23, 180,021.51 and 49,899.15 is: 74,845.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,019.23 : 180,021.51 = 49,899.15 : x
  2. Step 2: Convert to fraction form
    120,019.23/180,021.51 = 49,899.15/x
  3. Step 3: Cross multiply
    120,019.23x = 180,021.51 × 49,899.15
  4. Step 4: Simplify right side
    120,019.23x = 8,982,920,330.72
  5. Step 5: Solve for x
    x = 8,982,920,330.72/120,019.23
  6. Step 6: Final answer
    x = 74,845.68

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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.