Home / 113,900.09-170,863.80-47,385.21

Finding the Fourth Proportional to 113,900.09, 170,863.80 and 47,385.21

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Solution

The fourth proportional to 113,900.09, 170,863.80 and 47,385.21 is: 71,083.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,900.09 : 170,863.80 = 47,385.21 : x
  2. Step 2: Convert to fraction form
    113,900.09/170,863.80 = 47,385.21/x
  3. Step 3: Cross multiply
    113,900.09x = 170,863.80 × 47,385.21
  4. Step 4: Simplify right side
    113,900.09x = 8,096,417,507.44
  5. Step 5: Solve for x
    x = 8,096,417,507.44/113,900.09
  6. Step 6: Final answer
    x = 71,083.51

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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.