Home / 103,528.60-154,964.85-74,004.10

Finding the Fourth Proportional to 103,528.60, 154,964.85 and 74,004.10

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Solution

The fourth proportional to 103,528.60, 154,964.85 and 74,004.10 is: 110,771.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,528.60 : 154,964.85 = 74,004.10 : x
  2. Step 2: Convert to fraction form
    103,528.60/154,964.85 = 74,004.10/x
  3. Step 3: Cross multiply
    103,528.60x = 154,964.85 × 74,004.10
  4. Step 4: Simplify right side
    103,528.60x = 11,468,034,255.89
  5. Step 5: Solve for x
    x = 11,468,034,255.89/103,528.60
  6. Step 6: Final answer
    x = 110,771.65

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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.