Home / 105,768.24-145,966.96-69,895.36

Finding the Fourth Proportional to 105,768.24, 145,966.96 and 69,895.36

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Solution

The fourth proportional to 105,768.24, 145,966.96 and 69,895.36 is: 96,460.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,768.24 : 145,966.96 = 69,895.36 : x
  2. Step 2: Convert to fraction form
    105,768.24/145,966.96 = 69,895.36/x
  3. Step 3: Cross multiply
    105,768.24x = 145,966.96 × 69,895.36
  4. Step 4: Simplify right side
    105,768.24x = 10,202,413,217.31
  5. Step 5: Solve for x
    x = 10,202,413,217.31/105,768.24
  6. Step 6: Final answer
    x = 96,460.08

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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.