Home / 188,799.42-260,543.28-103,915.88

Finding the Fourth Proportional to 188,799.42, 260,543.28 and 103,915.88

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Solution

The fourth proportional to 188,799.42, 260,543.28 and 103,915.88 is: 143,403.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,799.42 : 260,543.28 = 103,915.88 : x
  2. Step 2: Convert to fraction form
    188,799.42/260,543.28 = 103,915.88/x
  3. Step 3: Cross multiply
    188,799.42x = 260,543.28 × 103,915.88
  4. Step 4: Simplify right side
    188,799.42x = 27,074,584,219.29
  5. Step 5: Solve for x
    x = 27,074,584,219.29/188,799.42
  6. Step 6: Final answer
    x = 143,403.96

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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.