Home / 120,352.75-180,537.32-31,606.11

Finding the Fourth Proportional to 120,352.75, 180,537.32 and 31,606.11

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Solution

The fourth proportional to 120,352.75, 180,537.32 and 31,606.11 is: 47,411.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,352.75 : 180,537.32 = 31,606.11 : x
  2. Step 2: Convert to fraction form
    120,352.75/180,537.32 = 31,606.11/x
  3. Step 3: Cross multiply
    120,352.75x = 180,537.32 × 31,606.11
  4. Step 4: Simplify right side
    120,352.75x = 5,706,082,474.04
  5. Step 5: Solve for x
    x = 5,706,082,474.04/120,352.75
  6. Step 6: Final answer
    x = 47,411.32

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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.