Home / 157,632.12-217,568.88-103,926.60

Finding the Fourth Proportional to 157,632.12, 217,568.88 and 103,926.60

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Solution

The fourth proportional to 157,632.12, 217,568.88 and 103,926.60 is: 143,442.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,632.12 : 217,568.88 = 103,926.60 : x
  2. Step 2: Convert to fraction form
    157,632.12/217,568.88 = 103,926.60/x
  3. Step 3: Cross multiply
    157,632.12x = 217,568.88 × 103,926.60
  4. Step 4: Simplify right side
    157,632.12x = 22,611,193,964.21
  5. Step 5: Solve for x
    x = 22,611,193,964.21/157,632.12
  6. Step 6: Final answer
    x = 143,442.81

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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.