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Finding the Fourth Proportional to 133,232.86, 183,855.54 and 72,800.65

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Solution

The fourth proportional to 133,232.86, 183,855.54 and 72,800.65 is: 100,461.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,232.86 : 183,855.54 = 72,800.65 : x
  2. Step 2: Convert to fraction form
    133,232.86/183,855.54 = 72,800.65/x
  3. Step 3: Cross multiply
    133,232.86x = 183,855.54 × 72,800.65
  4. Step 4: Simplify right side
    133,232.86x = 13,384,802,818.10
  5. Step 5: Solve for x
    x = 13,384,802,818.10/133,232.86
  6. Step 6: Final answer
    x = 100,461.72

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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.