Home / 133,156.08-183,756.78-72,728.46

Finding the Fourth Proportional to 133,156.08, 183,756.78 and 72,728.46

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Solution

The fourth proportional to 133,156.08, 183,756.78 and 72,728.46 is: 100,366.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,156.08 : 183,756.78 = 72,728.46 : x
  2. Step 2: Convert to fraction form
    133,156.08/183,756.78 = 72,728.46/x
  3. Step 3: Cross multiply
    133,156.08x = 183,756.78 × 72,728.46
  4. Step 4: Simplify right side
    133,156.08x = 13,364,347,623.96
  5. Step 5: Solve for x
    x = 13,364,347,623.96/133,156.08
  6. Step 6: Final answer
    x = 100,366.03

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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.