Home / 161,823.69-242,683.02-76,421.34

Finding the Fourth Proportional to 161,823.69, 242,683.02 and 76,421.34

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Solution

The fourth proportional to 161,823.69, 242,683.02 and 76,421.34 is: 114,607.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,823.69 : 242,683.02 = 76,421.34 : x
  2. Step 2: Convert to fraction form
    161,823.69/242,683.02 = 76,421.34/x
  3. Step 3: Cross multiply
    161,823.69x = 242,683.02 × 76,421.34
  4. Step 4: Simplify right side
    161,823.69x = 18,546,161,550.42
  5. Step 5: Solve for x
    x = 18,546,161,550.42/161,823.69
  6. Step 6: Final answer
    x = 114,607.21

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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.