Home / 105,744.88-145,872.66-62,699.32

Finding the Fourth Proportional to 105,744.88, 145,872.66 and 62,699.32

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Solution

The fourth proportional to 105,744.88, 145,872.66 and 62,699.32 is: 86,492.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,744.88 : 145,872.66 = 62,699.32 : x
  2. Step 2: Convert to fraction form
    105,744.88/145,872.66 = 62,699.32/x
  3. Step 3: Cross multiply
    105,744.88x = 145,872.66 × 62,699.32
  4. Step 4: Simplify right side
    105,744.88x = 9,146,116,588.59
  5. Step 5: Solve for x
    x = 9,146,116,588.59/105,744.88
  6. Step 6: Final answer
    x = 86,492.29

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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.