Home / 113,845.80-170,768.70-72,476.20

Finding the Fourth Proportional to 113,845.80, 170,768.70 and 72,476.20

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Solution

The fourth proportional to 113,845.80, 170,768.70 and 72,476.20 is: 108,714.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,845.80 : 170,768.70 = 72,476.20 : x
  2. Step 2: Convert to fraction form
    113,845.80/170,768.70 = 72,476.20/x
  3. Step 3: Cross multiply
    113,845.80x = 170,768.70 × 72,476.20
  4. Step 4: Simplify right side
    113,845.80x = 12,376,666,454.94
  5. Step 5: Solve for x
    x = 12,376,666,454.94/113,845.80
  6. Step 6: Final answer
    x = 108,714.30

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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.