Home / 115,355.68-159,185.92-65,059.36

Finding the Fourth Proportional to 115,355.68, 159,185.92 and 65,059.36

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Solution

The fourth proportional to 115,355.68, 159,185.92 and 65,059.36 is: 89,779.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,355.68 : 159,185.92 = 65,059.36 : x
  2. Step 2: Convert to fraction form
    115,355.68/159,185.92 = 65,059.36/x
  3. Step 3: Cross multiply
    115,355.68x = 159,185.92 × 65,059.36
  4. Step 4: Simplify right side
    115,355.68x = 10,356,534,076.21
  5. Step 5: Solve for x
    x = 10,356,534,076.21/115,355.68
  6. Step 6: Final answer
    x = 89,779.14

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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.