Home / 218,903.45-328,365.02-67,089.41

Finding the Fourth Proportional to 218,903.45, 328,365.02 and 67,089.41

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Solution

The fourth proportional to 218,903.45, 328,365.02 and 67,089.41 is: 100,637.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,903.45 : 328,365.02 = 67,089.41 : x
  2. Step 2: Convert to fraction form
    218,903.45/328,365.02 = 67,089.41/x
  3. Step 3: Cross multiply
    218,903.45x = 328,365.02 × 67,089.41
  4. Step 4: Simplify right side
    218,903.45x = 22,029,815,456.44
  5. Step 5: Solve for x
    x = 22,029,815,456.44/218,903.45
  6. Step 6: Final answer
    x = 100,637.13

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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.