Home / 115,292.32-159,101.28-64,991.36

Finding the Fourth Proportional to 115,292.32, 159,101.28 and 64,991.36

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Solution

The fourth proportional to 115,292.32, 159,101.28 and 64,991.36 is: 89,686.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,292.32 : 159,101.28 = 64,991.36 : x
  2. Step 2: Convert to fraction form
    115,292.32/159,101.28 = 64,991.36/x
  3. Step 3: Cross multiply
    115,292.32x = 159,101.28 × 64,991.36
  4. Step 4: Simplify right side
    115,292.32x = 10,340,208,564.94
  5. Step 5: Solve for x
    x = 10,340,208,564.94/115,292.32
  6. Step 6: Final answer
    x = 89,686.88

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.