Home / 145,965.34-218,943.96-40,781.44

Finding the Fourth Proportional to 145,965.34, 218,943.96 and 40,781.44

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Solution

The fourth proportional to 145,965.34, 218,943.96 and 40,781.44 is: 61,171.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,965.34 : 218,943.96 = 40,781.44 : x
  2. Step 2: Convert to fraction form
    145,965.34/218,943.96 = 40,781.44/x
  3. Step 3: Cross multiply
    145,965.34x = 218,943.96 × 40,781.44
  4. Step 4: Simplify right side
    145,965.34x = 8,928,849,968.10
  5. Step 5: Solve for x
    x = 8,928,849,968.10/145,965.34
  6. Step 6: Final answer
    x = 61,171.03

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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.