Home / 147,411.48-203,402.31-86,977.56

Finding the Fourth Proportional to 147,411.48, 203,402.31 and 86,977.56

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Solution

The fourth proportional to 147,411.48, 203,402.31 and 86,977.56 is: 120,013.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,411.48 : 203,402.31 = 86,977.56 : x
  2. Step 2: Convert to fraction form
    147,411.48/203,402.31 = 86,977.56/x
  3. Step 3: Cross multiply
    147,411.48x = 203,402.31 × 86,977.56
  4. Step 4: Simplify right side
    147,411.48x = 17,691,436,622.16
  5. Step 5: Solve for x
    x = 17,691,436,622.16/147,411.48
  6. Step 6: Final answer
    x = 120,013.97

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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.