Home / 105,763.26-145,960.02-69,890.34

Finding the Fourth Proportional to 105,763.26, 145,960.02 and 69,890.34

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Solution

The fourth proportional to 105,763.26, 145,960.02 and 69,890.34 is: 96,453.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,763.26 : 145,960.02 = 69,890.34 : x
  2. Step 2: Convert to fraction form
    105,763.26/145,960.02 = 69,890.34/x
  3. Step 3: Cross multiply
    105,763.26x = 145,960.02 × 69,890.34
  4. Step 4: Simplify right side
    105,763.26x = 10,201,195,424.21
  5. Step 5: Solve for x
    x = 10,201,195,424.21/105,763.26
  6. Step 6: Final answer
    x = 96,453.11

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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.