Home / 120,139.24-180,254.94-46,273

Finding the Fourth Proportional to 120,139.24, 180,254.94 and 46,273

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Solution

The fourth proportional to 120,139.24, 180,254.94 and 46,273 is: 69,427.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,139.24 : 180,254.94 = 46,273 : x
  2. Step 2: Convert to fraction form
    120,139.24/180,254.94 = 46,273/x
  3. Step 3: Cross multiply
    120,139.24x = 180,254.94 × 46,273
  4. Step 4: Simplify right side
    120,139.24x = 8,340,936,838.62
  5. Step 5: Solve for x
    x = 8,340,936,838.62/120,139.24
  6. Step 6: Final answer
    x = 69,427.25

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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.