Home / 188,905.16-260,688.70-102,862.80

Finding the Fourth Proportional to 188,905.16, 260,688.70 and 102,862.80

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Solution

The fourth proportional to 188,905.16, 260,688.70 and 102,862.80 is: 141,950.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,905.16 : 260,688.70 = 102,862.80 : x
  2. Step 2: Convert to fraction form
    188,905.16/260,688.70 = 102,862.80/x
  3. Step 3: Cross multiply
    188,905.16x = 260,688.70 × 102,862.80
  4. Step 4: Simplify right side
    188,905.16x = 26,815,169,353.20
  5. Step 5: Solve for x
    x = 26,815,169,353.20/188,905.16
  6. Step 6: Final answer
    x = 141,950.44

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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.