Home / 145,610.26-218,415.30-40,429.20

Finding the Fourth Proportional to 145,610.26, 218,415.30 and 40,429.20

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Solution

The fourth proportional to 145,610.26, 218,415.30 and 40,429.20 is: 60,643.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,610.26 : 218,415.30 = 40,429.20 : x
  2. Step 2: Convert to fraction form
    145,610.26/218,415.30 = 40,429.20/x
  3. Step 3: Cross multiply
    145,610.26x = 218,415.30 × 40,429.20
  4. Step 4: Simplify right side
    145,610.26x = 8,830,355,846.76
  5. Step 5: Solve for x
    x = 8,830,355,846.76/145,610.26
  6. Step 6: Final answer
    x = 60,643.78

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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.