Home / 105,446.36-145,511.64-63,028.28

Finding the Fourth Proportional to 105,446.36, 145,511.64 and 63,028.28

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Solution

The fourth proportional to 105,446.36, 145,511.64 and 63,028.28 is: 86,976.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,446.36 : 145,511.64 = 63,028.28 : x
  2. Step 2: Convert to fraction form
    105,446.36/145,511.64 = 63,028.28/x
  3. Step 3: Cross multiply
    105,446.36x = 145,511.64 × 63,028.28
  4. Step 4: Simplify right side
    105,446.36x = 9,171,348,389.18
  5. Step 5: Solve for x
    x = 9,171,348,389.18/105,446.36
  6. Step 6: Final answer
    x = 86,976.43

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1.5x scale

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.