Home / 120,536.40-180,762.66-49,438.56

Finding the Fourth Proportional to 120,536.40, 180,762.66 and 49,438.56

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Solution

The fourth proportional to 120,536.40, 180,762.66 and 49,438.56 is: 74,140.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,536.40 : 180,762.66 = 49,438.56 : x
  2. Step 2: Convert to fraction form
    120,536.40/180,762.66 = 49,438.56/x
  3. Step 3: Cross multiply
    120,536.40x = 180,762.66 × 49,438.56
  4. Step 4: Simplify right side
    120,536.40x = 8,936,645,612.17
  5. Step 5: Solve for x
    x = 8,936,645,612.17/120,536.40
  6. Step 6: Final answer
    x = 74,140.64

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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.