Home / 145,845.12-218,739.72-61,577.58

Finding the Fourth Proportional to 145,845.12, 218,739.72 and 61,577.58

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Solution

The fourth proportional to 145,845.12, 218,739.72 and 61,577.58 is: 92,354.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,845.12 : 218,739.72 = 61,577.58 : x
  2. Step 2: Convert to fraction form
    145,845.12/218,739.72 = 61,577.58/x
  3. Step 3: Cross multiply
    145,845.12x = 218,739.72 × 61,577.58
  4. Step 4: Simplify right side
    145,845.12x = 13,469,462,607.48
  5. Step 5: Solve for x
    x = 13,469,462,607.48/145,845.12
  6. Step 6: Final answer
    x = 92,354.56

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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.