Home / 115,607.10-159,537.32-64,619.76

Finding the Fourth Proportional to 115,607.10, 159,537.32 and 64,619.76

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Solution

The fourth proportional to 115,607.10, 159,537.32 and 64,619.76 is: 89,175.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,607.10 : 159,537.32 = 64,619.76 : x
  2. Step 2: Convert to fraction form
    115,607.10/159,537.32 = 64,619.76/x
  3. Step 3: Cross multiply
    115,607.10x = 159,537.32 × 64,619.76
  4. Step 4: Simplify right side
    115,607.10x = 10,309,263,329.44
  5. Step 5: Solve for x
    x = 10,309,263,329.44/115,607.10
  6. Step 6: Final answer
    x = 89,175.00

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1.5x scale

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.