Home / 120,022.54-180,146.81-60,900.64

Finding the Fourth Proportional to 120,022.54, 180,146.81 and 60,900.64

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Solution

The fourth proportional to 120,022.54, 180,146.81 and 60,900.64 is: 91,408.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,022.54 : 180,146.81 = 60,900.64 : x
  2. Step 2: Convert to fraction form
    120,022.54/180,146.81 = 60,900.64/x
  3. Step 3: Cross multiply
    120,022.54x = 180,146.81 × 60,900.64
  4. Step 4: Simplify right side
    120,022.54x = 10,971,055,718.46
  5. Step 5: Solve for x
    x = 10,971,055,718.46/120,022.54
  6. Step 6: Final answer
    x = 91,408.29

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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.