Home / 188,283.17-259,835.29-103,402.05

Finding the Fourth Proportional to 188,283.17, 259,835.29 and 103,402.05

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Solution

The fourth proportional to 188,283.17, 259,835.29 and 103,402.05 is: 142,697.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,283.17 : 259,835.29 = 103,402.05 : x
  2. Step 2: Convert to fraction form
    188,283.17/259,835.29 = 103,402.05/x
  3. Step 3: Cross multiply
    188,283.17x = 259,835.29 × 103,402.05
  4. Step 4: Simplify right side
    188,283.17x = 26,867,501,389.84
  5. Step 5: Solve for x
    x = 26,867,501,389.84/188,283.17
  6. Step 6: Final answer
    x = 142,697.31

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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.