Home / 115,610.68-159,539.38-64,623.51

Finding the Fourth Proportional to 115,610.68, 159,539.38 and 64,623.51

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Solution

The fourth proportional to 115,610.68, 159,539.38 and 64,623.51 is: 89,178.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,610.68 : 159,539.38 = 64,623.51 : x
  2. Step 2: Convert to fraction form
    115,610.68/159,539.38 = 64,623.51/x
  3. Step 3: Cross multiply
    115,610.68x = 159,539.38 × 64,623.51
  4. Step 4: Simplify right side
    115,610.68x = 10,309,994,718.82
  5. Step 5: Solve for x
    x = 10,309,994,718.82/115,610.68
  6. Step 6: Final answer
    x = 89,178.57

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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.