Home / 120,446.19-180,655.31-31,706.62

Finding the Fourth Proportional to 120,446.19, 180,655.31 and 31,706.62

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Solution

The fourth proportional to 120,446.19, 180,655.31 and 31,706.62 is: 47,556.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,446.19 : 180,655.31 = 31,706.62 : x
  2. Step 2: Convert to fraction form
    120,446.19/180,655.31 = 31,706.62/x
  3. Step 3: Cross multiply
    120,446.19x = 180,655.31 × 31,706.62
  4. Step 4: Simplify right side
    120,446.19x = 5,727,969,908.97
  5. Step 5: Solve for x
    x = 5,727,969,908.97/120,446.19
  6. Step 6: Final answer
    x = 47,556.26

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1.5x scale

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.