Home / 162,423.48-243,708-103,243.80

Finding the Fourth Proportional to 162,423.48, 243,708 and 103,243.80

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Solution

The fourth proportional to 162,423.48, 243,708 and 103,243.80 is: 154,911.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,423.48 : 243,708 = 103,243.80 : x
  2. Step 2: Convert to fraction form
    162,423.48/243,708 = 103,243.80/x
  3. Step 3: Cross multiply
    162,423.48x = 243,708 × 103,243.80
  4. Step 4: Simplify right side
    162,423.48x = 25,161,340,010.40
  5. Step 5: Solve for x
    x = 25,161,340,010.40/162,423.48
  6. Step 6: Final answer
    x = 154,911.96

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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.