Home / 103,792.20-155,688.30-80,464.20

Finding the Fourth Proportional to 103,792.20, 155,688.30 and 80,464.20

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Solution

The fourth proportional to 103,792.20, 155,688.30 and 80,464.20 is: 120,696.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,792.20 : 155,688.30 = 80,464.20 : x
  2. Step 2: Convert to fraction form
    103,792.20/155,688.30 = 80,464.20/x
  3. Step 3: Cross multiply
    103,792.20x = 155,688.30 × 80,464.20
  4. Step 4: Simplify right side
    103,792.20x = 12,527,334,508.86
  5. Step 5: Solve for x
    x = 12,527,334,508.86/103,792.20
  6. Step 6: Final answer
    x = 120,696.30

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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.