Home / 188,786.34-260,526.98-103,905.36

Finding the Fourth Proportional to 188,786.34, 260,526.98 and 103,905.36

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Solution

The fourth proportional to 188,786.34, 260,526.98 and 103,905.36 is: 143,390.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,786.34 : 260,526.98 = 103,905.36 : x
  2. Step 2: Convert to fraction form
    188,786.34/260,526.98 = 103,905.36/x
  3. Step 3: Cross multiply
    188,786.34x = 260,526.98 × 103,905.36
  4. Step 4: Simplify right side
    188,786.34x = 27,070,149,646.61
  5. Step 5: Solve for x
    x = 27,070,149,646.61/188,786.34
  6. Step 6: Final answer
    x = 143,390.40

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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.