Home / 115,443.74-159,310.85-64,457.34

Finding the Fourth Proportional to 115,443.74, 159,310.85 and 64,457.34

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Solution

The fourth proportional to 115,443.74, 159,310.85 and 64,457.34 is: 88,950.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,443.74 : 159,310.85 = 64,457.34 : x
  2. Step 2: Convert to fraction form
    115,443.74/159,310.85 = 64,457.34/x
  3. Step 3: Cross multiply
    115,443.74x = 159,310.85 × 64,457.34
  4. Step 4: Simplify right side
    115,443.74x = 10,268,752,505.30
  5. Step 5: Solve for x
    x = 10,268,752,505.30/115,443.74
  6. Step 6: Final answer
    x = 88,950.28

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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.