Home / 133,186.08-183,798.18-72,758.64

Finding the Fourth Proportional to 133,186.08, 183,798.18 and 72,758.64

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Solution

The fourth proportional to 133,186.08, 183,798.18 and 72,758.64 is: 100,407.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,186.08 : 183,798.18 = 72,758.64 : x
  2. Step 2: Convert to fraction form
    133,186.08/183,798.18 = 72,758.64/x
  3. Step 3: Cross multiply
    133,186.08x = 183,798.18 × 72,758.64
  4. Step 4: Simplify right side
    133,186.08x = 13,372,905,611.28
  5. Step 5: Solve for x
    x = 13,372,905,611.28/133,186.08
  6. Step 6: Final answer
    x = 100,407.68

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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.