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Finding the Fourth Proportional to 120,019.77, 180,051.53 and 41,141.97

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Solution

The fourth proportional to 120,019.77, 180,051.53 and 41,141.97 is: 61,720.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,019.77 : 180,051.53 = 41,141.97 : x
  2. Step 2: Convert to fraction form
    120,019.77/180,051.53 = 41,141.97/x
  3. Step 3: Cross multiply
    120,019.77x = 180,051.53 × 41,141.97
  4. Step 4: Simplify right side
    120,019.77x = 7,407,674,440.00
  5. Step 5: Solve for x
    x = 7,407,674,440.00/120,019.77
  6. Step 6: Final answer
    x = 61,720.45

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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.