Home / 128,332.08-193,211.46-111,186

Finding the Fourth Proportional to 128,332.08, 193,211.46 and 111,186

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Solution

The fourth proportional to 128,332.08, 193,211.46 and 111,186 is: 167,397.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,332.08 : 193,211.46 = 111,186 : x
  2. Step 2: Convert to fraction form
    128,332.08/193,211.46 = 111,186/x
  3. Step 3: Cross multiply
    128,332.08x = 193,211.46 × 111,186
  4. Step 4: Simplify right side
    128,332.08x = 21,482,409,391.56
  5. Step 5: Solve for x
    x = 21,482,409,391.56/128,332.08
  6. Step 6: Final answer
    x = 167,397.03

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.