Home / 145,619.88-218,405.52-40,449.48

Finding the Fourth Proportional to 145,619.88, 218,405.52 and 40,449.48

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Solution

The fourth proportional to 145,619.88, 218,405.52 and 40,449.48 is: 60,667.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,619.88 : 218,405.52 = 40,449.48 : x
  2. Step 2: Convert to fraction form
    145,619.88/218,405.52 = 40,449.48/x
  3. Step 3: Cross multiply
    145,619.88x = 218,405.52 × 40,449.48
  4. Step 4: Simplify right side
    145,619.88x = 8,834,389,713.13
  5. Step 5: Solve for x
    x = 8,834,389,713.13/145,619.88
  6. Step 6: Final answer
    x = 60,667.47

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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.