Home / 145,610.88-218,416.41-40,429.86

Finding the Fourth Proportional to 145,610.88, 218,416.41 and 40,429.86

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Solution

The fourth proportional to 145,610.88, 218,416.41 and 40,429.86 is: 60,644.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,610.88 : 218,416.41 = 40,429.86 : x
  2. Step 2: Convert to fraction form
    145,610.88/218,416.41 = 40,429.86/x
  3. Step 3: Cross multiply
    145,610.88x = 218,416.41 × 40,429.86
  4. Step 4: Simplify right side
    145,610.88x = 8,830,544,878.00
  5. Step 5: Solve for x
    x = 8,830,544,878.00/145,610.88
  6. Step 6: Final answer
    x = 60,644.81

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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.