Home / 105,669.48-158,361.60-53,116.68

Finding the Fourth Proportional to 105,669.48, 158,361.60 and 53,116.68

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Solution

The fourth proportional to 105,669.48, 158,361.60 and 53,116.68 is: 79,603.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,669.48 : 158,361.60 = 53,116.68 : x
  2. Step 2: Convert to fraction form
    105,669.48/158,361.60 = 53,116.68/x
  3. Step 3: Cross multiply
    105,669.48x = 158,361.60 × 53,116.68
  4. Step 4: Simplify right side
    105,669.48x = 8,411,642,431.49
  5. Step 5: Solve for x
    x = 8,411,642,431.49/105,669.48
  6. Step 6: Final answer
    x = 79,603.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.