Home / 180,985.84-271,569.30-81,217.36

Finding the Fourth Proportional to 180,985.84, 271,569.30 and 81,217.36

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Solution

The fourth proportional to 180,985.84, 271,569.30 and 81,217.36 is: 121,866.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,985.84 : 271,569.30 = 81,217.36 : x
  2. Step 2: Convert to fraction form
    180,985.84/271,569.30 = 81,217.36/x
  3. Step 3: Cross multiply
    180,985.84x = 271,569.30 × 81,217.36
  4. Step 4: Simplify right side
    180,985.84x = 22,056,141,603.05
  5. Step 5: Solve for x
    x = 22,056,141,603.05/180,985.84
  6. Step 6: Final answer
    x = 121,866.67

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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.