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Finding the Fourth Proportional to 133,161.64, 183,762.13 and 72,732.30

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Solution

The fourth proportional to 133,161.64, 183,762.13 and 72,732.30 is: 100,370.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,161.64 : 183,762.13 = 72,732.30 : x
  2. Step 2: Convert to fraction form
    133,161.64/183,762.13 = 72,732.30/x
  3. Step 3: Cross multiply
    133,161.64x = 183,762.13 × 72,732.30
  4. Step 4: Simplify right side
    133,161.64x = 13,365,442,367.80
  5. Step 5: Solve for x
    x = 13,365,442,367.80/133,161.64
  6. Step 6: Final answer
    x = 100,370.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.