Home / 102,420.58-153,394.83-98,874.43

Finding the Fourth Proportional to 102,420.58, 153,394.83 and 98,874.43

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Solution

The fourth proportional to 102,420.58, 153,394.83 and 98,874.43 is: 148,083.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,420.58 : 153,394.83 = 98,874.43 : x
  2. Step 2: Convert to fraction form
    102,420.58/153,394.83 = 98,874.43/x
  3. Step 3: Cross multiply
    102,420.58x = 153,394.83 × 98,874.43
  4. Step 4: Simplify right side
    102,420.58x = 15,166,826,381.20
  5. Step 5: Solve for x
    x = 15,166,826,381.20/102,420.58
  6. Step 6: Final answer
    x = 148,083.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.