Home / 133,132.37-183,715.79-72,691.34

Finding the Fourth Proportional to 133,132.37, 183,715.79 and 72,691.34

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Solution

The fourth proportional to 133,132.37, 183,715.79 and 72,691.34 is: 100,310.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,132.37 : 183,715.79 = 72,691.34 : x
  2. Step 2: Convert to fraction form
    133,132.37/183,715.79 = 72,691.34/x
  3. Step 3: Cross multiply
    133,132.37x = 183,715.79 × 72,691.34
  4. Step 4: Simplify right side
    133,132.37x = 13,354,545,672.22
  5. Step 5: Solve for x
    x = 13,354,545,672.22/133,132.37
  6. Step 6: Final answer
    x = 100,310.29

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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.