Home / 143,831.30-215,746.88-43,991.51

Finding the Fourth Proportional to 143,831.30, 215,746.88 and 43,991.51

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Solution

The fourth proportional to 143,831.30, 215,746.88 and 43,991.51 is: 65,987.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,831.30 : 215,746.88 = 43,991.51 : x
  2. Step 2: Convert to fraction form
    143,831.30/215,746.88 = 43,991.51/x
  3. Step 3: Cross multiply
    143,831.30x = 215,746.88 × 43,991.51
  4. Step 4: Simplify right side
    143,831.30x = 9,491,029,730.30
  5. Step 5: Solve for x
    x = 9,491,029,730.30/143,831.30
  6. Step 6: Final answer
    x = 65,987.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.