Home / 186,128.28-279,189.18-53,009.64

Finding the Fourth Proportional to 186,128.28, 279,189.18 and 53,009.64

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Solution

The fourth proportional to 186,128.28, 279,189.18 and 53,009.64 is: 79,513.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,128.28 : 279,189.18 = 53,009.64 : x
  2. Step 2: Convert to fraction form
    186,128.28/279,189.18 = 53,009.64/x
  3. Step 3: Cross multiply
    186,128.28x = 279,189.18 × 53,009.64
  4. Step 4: Simplify right side
    186,128.28x = 14,799,717,923.70
  5. Step 5: Solve for x
    x = 14,799,717,923.70/186,128.28
  6. Step 6: Final answer
    x = 79,513.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.