Home / 186,655.28-257,606.48-117,844.72

Finding the Fourth Proportional to 186,655.28, 257,606.48 and 117,844.72

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Solution

The fourth proportional to 186,655.28, 257,606.48 and 117,844.72 is: 162,639.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,655.28 : 257,606.48 = 117,844.72 : x
  2. Step 2: Convert to fraction form
    186,655.28/257,606.48 = 117,844.72/x
  3. Step 3: Cross multiply
    186,655.28x = 257,606.48 × 117,844.72
  4. Step 4: Simplify right side
    186,655.28x = 30,357,563,505.79
  5. Step 5: Solve for x
    x = 30,357,563,505.79/186,655.28
  6. Step 6: Final answer
    x = 162,639.73

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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.