Home / 105,252.75-145,207.56-64,896.46

Finding the Fourth Proportional to 105,252.75, 145,207.56 and 64,896.46

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Solution

The fourth proportional to 105,252.75, 145,207.56 and 64,896.46 is: 89,531.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,252.75 : 145,207.56 = 64,896.46 : x
  2. Step 2: Convert to fraction form
    105,252.75/145,207.56 = 64,896.46/x
  3. Step 3: Cross multiply
    105,252.75x = 145,207.56 × 64,896.46
  4. Step 4: Simplify right side
    105,252.75x = 9,423,456,489.58
  5. Step 5: Solve for x
    x = 9,423,456,489.58/105,252.75
  6. Step 6: Final answer
    x = 89,531.69

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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.