Home / 115,518.24-159,397.20-65,216.16

Finding the Fourth Proportional to 115,518.24, 159,397.20 and 65,216.16

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Solution

The fourth proportional to 115,518.24, 159,397.20 and 65,216.16 is: 89,988.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,518.24 : 159,397.20 = 65,216.16 : x
  2. Step 2: Convert to fraction form
    115,518.24/159,397.20 = 65,216.16/x
  3. Step 3: Cross multiply
    115,518.24x = 159,397.20 × 65,216.16
  4. Step 4: Simplify right side
    115,518.24x = 10,395,273,298.75
  5. Step 5: Solve for x
    x = 10,395,273,298.75/115,518.24
  6. Step 6: Final answer
    x = 89,988.16

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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.