Home / 104,281.26-143,831.70-68,458.20

Finding the Fourth Proportional to 104,281.26, 143,831.70 and 68,458.20

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Solution

The fourth proportional to 104,281.26, 143,831.70 and 68,458.20 is: 94,422.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,281.26 : 143,831.70 = 68,458.20 : x
  2. Step 2: Convert to fraction form
    104,281.26/143,831.70 = 68,458.20/x
  3. Step 3: Cross multiply
    104,281.26x = 143,831.70 × 68,458.20
  4. Step 4: Simplify right side
    104,281.26x = 9,846,459,284.94
  5. Step 5: Solve for x
    x = 9,846,459,284.94/104,281.26
  6. Step 6: Final answer
    x = 94,422.14

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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.