Home / 133,729.79-184,516.92-90,715.14

Finding the Fourth Proportional to 133,729.79, 184,516.92 and 90,715.14

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Solution

The fourth proportional to 133,729.79, 184,516.92 and 90,715.14 is: 125,166.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,729.79 : 184,516.92 = 90,715.14 : x
  2. Step 2: Convert to fraction form
    133,729.79/184,516.92 = 90,715.14/x
  3. Step 3: Cross multiply
    133,729.79x = 184,516.92 × 90,715.14
  4. Step 4: Simplify right side
    133,729.79x = 16,738,478,230.17
  5. Step 5: Solve for x
    x = 16,738,478,230.17/133,729.79
  6. Step 6: Final answer
    x = 125,166.42

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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.