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Finding the Fourth Proportional to 103,519.55, 155,312.13 and 36,958.20

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Solution

The fourth proportional to 103,519.55, 155,312.13 and 36,958.20 is: 55,449.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,519.55 : 155,312.13 = 36,958.20 : x
  2. Step 2: Convert to fraction form
    103,519.55/155,312.13 = 36,958.20/x
  3. Step 3: Cross multiply
    103,519.55x = 155,312.13 × 36,958.20
  4. Step 4: Simplify right side
    103,519.55x = 5,740,056,762.97
  5. Step 5: Solve for x
    x = 5,740,056,762.97/103,519.55
  6. Step 6: Final answer
    x = 55,449.01

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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.