Home / 161,780.49-242,683.02-55,131.30

Finding the Fourth Proportional to 161,780.49, 242,683.02 and 55,131.30

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Solution

The fourth proportional to 161,780.49, 242,683.02 and 55,131.30 is: 82,701.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,780.49 : 242,683.02 = 55,131.30 : x
  2. Step 2: Convert to fraction form
    161,780.49/242,683.02 = 55,131.30/x
  3. Step 3: Cross multiply
    161,780.49x = 242,683.02 × 55,131.30
  4. Step 4: Simplify right side
    161,780.49x = 13,379,430,380.53
  5. Step 5: Solve for x
    x = 13,379,430,380.53/161,780.49
  6. Step 6: Final answer
    x = 82,701.14

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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.