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Finding the Fourth Proportional to 133,682.90, 200,459.55 and 74,455.70

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Solution

The fourth proportional to 133,682.90, 200,459.55 and 74,455.70 is: 111,647.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,682.90 : 200,459.55 = 74,455.70 : x
  2. Step 2: Convert to fraction form
    133,682.90/200,459.55 = 74,455.70/x
  3. Step 3: Cross multiply
    133,682.90x = 200,459.55 × 74,455.70
  4. Step 4: Simplify right side
    133,682.90x = 14,925,356,116.94
  5. Step 5: Solve for x
    x = 14,925,356,116.94/133,682.90
  6. Step 6: Final answer
    x = 111,647.46

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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.