Home / 120,529.24-180,795.74-45,629.28

Finding the Fourth Proportional to 120,529.24, 180,795.74 and 45,629.28

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Solution

The fourth proportional to 120,529.24, 180,795.74 and 45,629.28 is: 68,444.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,529.24 : 180,795.74 = 45,629.28 : x
  2. Step 2: Convert to fraction form
    120,529.24/180,795.74 = 45,629.28/x
  3. Step 3: Cross multiply
    120,529.24x = 180,795.74 × 45,629.28
  4. Step 4: Simplify right side
    120,529.24x = 8,249,579,443.27
  5. Step 5: Solve for x
    x = 8,249,579,443.27/120,529.24
  6. Step 6: Final answer
    x = 68,444.63

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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.