Home / 188,276.12-259,822.88-103,395

Finding the Fourth Proportional to 188,276.12, 259,822.88 and 103,395

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Solution

The fourth proportional to 188,276.12, 259,822.88 and 103,395 is: 142,686.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,276.12 : 259,822.88 = 103,395 : x
  2. Step 2: Convert to fraction form
    188,276.12/259,822.88 = 103,395/x
  3. Step 3: Cross multiply
    188,276.12x = 259,822.88 × 103,395
  4. Step 4: Simplify right side
    188,276.12x = 26,864,386,677.60
  5. Step 5: Solve for x
    x = 26,864,386,677.60/188,276.12
  6. Step 6: Final answer
    x = 142,686.11

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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.