Home / 120,526.26-180,790.47-31,792.38

Finding the Fourth Proportional to 120,526.26, 180,790.47 and 31,792.38

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Solution

The fourth proportional to 120,526.26, 180,790.47 and 31,792.38 is: 47,688.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,526.26 : 180,790.47 = 31,792.38 : x
  2. Step 2: Convert to fraction form
    120,526.26/180,790.47 = 31,792.38/x
  3. Step 3: Cross multiply
    120,526.26x = 180,790.47 × 31,792.38
  4. Step 4: Simplify right side
    120,526.26x = 5,747,759,322.62
  5. Step 5: Solve for x
    x = 5,747,759,322.62/120,526.26
  6. Step 6: Final answer
    x = 47,688.85

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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.