Home / 105,669.54-145,828.49-63,219.87

Finding the Fourth Proportional to 105,669.54, 145,828.49 and 63,219.87

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Solution

The fourth proportional to 105,669.54, 145,828.49 and 63,219.87 is: 87,246.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,669.54 : 145,828.49 = 63,219.87 : x
  2. Step 2: Convert to fraction form
    105,669.54/145,828.49 = 63,219.87/x
  3. Step 3: Cross multiply
    105,669.54x = 145,828.49 × 63,219.87
  4. Step 4: Simplify right side
    105,669.54x = 9,219,257,864.00
  5. Step 5: Solve for x
    x = 9,219,257,864.00/105,669.54
  6. Step 6: Final answer
    x = 87,246.12

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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.