Home / 120,581.72-180,898.50-40,627.62

Finding the Fourth Proportional to 120,581.72, 180,898.50 and 40,627.62

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Solution

The fourth proportional to 120,581.72, 180,898.50 and 40,627.62 is: 60,950.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,581.72 : 180,898.50 = 40,627.62 : x
  2. Step 2: Convert to fraction form
    120,581.72/180,898.50 = 40,627.62/x
  3. Step 3: Cross multiply
    120,581.72x = 180,898.50 × 40,627.62
  4. Step 4: Simplify right side
    120,581.72x = 7,349,475,516.57
  5. Step 5: Solve for x
    x = 7,349,475,516.57/120,581.72
  6. Step 6: Final answer
    x = 60,950.16

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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.