Home / 105,446.58-145,518.63-57,699.90

Finding the Fourth Proportional to 105,446.58, 145,518.63 and 57,699.90

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Solution

The fourth proportional to 105,446.58, 145,518.63 and 57,699.90 is: 79,627.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,446.58 : 145,518.63 = 57,699.90 : x
  2. Step 2: Convert to fraction form
    105,446.58/145,518.63 = 57,699.90/x
  3. Step 3: Cross multiply
    105,446.58x = 145,518.63 × 57,699.90
  4. Step 4: Simplify right side
    105,446.58x = 8,396,410,399.14
  5. Step 5: Solve for x
    x = 8,396,410,399.14/105,446.58
  6. Step 6: Final answer
    x = 79,627.15

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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.