Home / 143,831.07-215,725.80-43,964.45

Finding the Fourth Proportional to 143,831.07, 215,725.80 and 43,964.45

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Solution

The fourth proportional to 143,831.07, 215,725.80 and 43,964.45 is: 65,940.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,831.07 : 215,725.80 = 43,964.45 : x
  2. Step 2: Convert to fraction form
    143,831.07/215,725.80 = 43,964.45/x
  3. Step 3: Cross multiply
    143,831.07x = 215,725.80 × 43,964.45
  4. Step 4: Simplify right side
    143,831.07x = 9,484,266,043.02
  5. Step 5: Solve for x
    x = 9,484,266,043.02/143,831.07
  6. Step 6: Final answer
    x = 65,940.31

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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.