Home / 133,125.75-183,715.04-72,697.11

Finding the Fourth Proportional to 133,125.75, 183,715.04 and 72,697.11

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Solution

The fourth proportional to 133,125.75, 183,715.04 and 72,697.11 is: 100,322.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,125.75 : 183,715.04 = 72,697.11 : x
  2. Step 2: Convert to fraction form
    133,125.75/183,715.04 = 72,697.11/x
  3. Step 3: Cross multiply
    133,125.75x = 183,715.04 × 72,697.11
  4. Step 4: Simplify right side
    133,125.75x = 13,355,552,108.05
  5. Step 5: Solve for x
    x = 13,355,552,108.05/133,125.75
  6. Step 6: Final answer
    x = 100,322.83

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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.