Home / 115,293.32-159,102.66-64,992.36

Finding the Fourth Proportional to 115,293.32, 159,102.66 and 64,992.36

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Solution

The fourth proportional to 115,293.32, 159,102.66 and 64,992.36 is: 89,688.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,293.32 : 159,102.66 = 64,992.36 : x
  2. Step 2: Convert to fraction form
    115,293.32/159,102.66 = 64,992.36/x
  3. Step 3: Cross multiply
    115,293.32x = 159,102.66 × 64,992.36
  4. Step 4: Simplify right side
    115,293.32x = 10,340,457,355.68
  5. Step 5: Solve for x
    x = 10,340,457,355.68/115,293.32
  6. Step 6: Final answer
    x = 89,688.26

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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.